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Everyday Math Grade 4 – Lesson 2.9 Subtraction of Multi-digit Numbers Copyright © 2010 Kelly Mott
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Lesson Components: Part 1: Math Boxes 2.7 Page 41Math Boxes 2.7 Page 41 Part 2: ReviewReview Part 3: PP Borrow from the 10’sPP Borrow from the 10’s Part 4: PP Borrow from the 100’sPP Borrow from the 100’s Part 5: PP Borrowing More than OncePP Borrowing More than Once Part 6: PP Subtracting with ZerosPP Subtracting with Zeros Part 7: Math Journal Pages 46-48Math Journal Pages 46-48 Copyright © 2010 Kelly Mott
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Math Boxes Lesson 2.9 Page 49
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Copyright © 2010 Kelly Mott Math Box 1:
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Copyright © 2010 Kelly Mott Math Box 2:
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Copyright © 2010 Kelly Mott Math Box 3:
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Copyright © 2010 Kelly Mott Math Box 4:
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Copyright © 2010 Kelly Mott Math Box 5:
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Copyright © 2010 Kelly Mott REVIEW
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Copyright © 2010 Kelly Mott Name Collection Box 15
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What number is in the ten’s place? ____________________________ hundred thousand’s place? ________________ ten million’s place? ______________________ thousand’s place? _______________________ Place Value Practice 1 8746 9 3521
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What number is in the hundred’s place? ________________________ hundred million’s place? __________________ ten thousand’s place? ____________________ million’s place? _________________________ Place Value Practice 2 8746 9 3521
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Value of a Number Practice 1 Problem #1: 580, 763, 941 What is the 7 worth? ___________________________ Problem#2: 856, 742, 125 What is the 8 worth? ___________________________ Problem#3: 960, 588, 403 What is the 4 worth? ___________________________ Copyright © 2010 Kelly Mott
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Expanded Form Practice 1 Problem 1: 843,601,417 __________________ + __________________ + __________________ + __________________ Copyright © 2010 Kelly Mott
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1.What is the maximum? _________________________________________________________ 2.What is the minimum? _________________________________________________________ 3. What is the range (maximum – minimum)? _________________________________________________________ 4. What is the mode (most frequent) ? _________________________________________________________ 5. What is the median (middle number)? _________________________________________________________ Copyright © 2010 Kelly Mott LOOK AT THE DATA: 2 4 4 7 7 7 8 10 14
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Copyright © 2010 Kelly Mott Lesson 2.9 Three Digit Subtraction
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Copyright © 2010 Kelly Mott PART 1: BORROWING FROM THE TENS
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1.When we subtract, we start with the ones column. 2.1-6…can’t be done…so we have to borrow from the tens: TensOnes Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 231 - 116 __________________
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1.When we subtract, we start with the ones column. 2.4-8…can’t be done…so we have to borrow from the tens: TensOnes Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 864 - 428 __________________
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1.When we subtract, we start with the ones column. 2.5-6…can’t be done…so we have to borrow from the tens: TensOnes Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 935 - 526 __________________
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1.When we subtract, we start with the ones column. 2.7-9…can’t be done…so we have to borrow from the tens: TensOnes Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 647 - 229 __________________
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1.When we subtract, we start with the ones column. 2.1-6…can’t be done…so we have to borrow from the tens: TensOnes Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 273 - 118 __________________
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Does this make sense? Copyright © 2010 Kelly Mott
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Practice Problems Copyright © 2010 Kelly Mott
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Practice 1: Regrouping Tens to Ones 461 248 254 125 A.B. Copyright © 2010 Kelly Mott --
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Practice 2: Regrouping Tens to Ones 396 147 822 715 C.D. Copyright © 2010 Kelly Mott --
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Practice 3: Regrouping Tens to Ones 568 239 781 364 E.F. Copyright © 2010 Kelly Mott --
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Practice 4: Regrouping Tens to Ones 426 218 585 157 G.H. Copyright © 2010 Kelly Mott --
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HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGE 67 Copyright © 20010Kelly Mott
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Copyright © 2010 Kelly Mott
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Does this make sense? Copyright © 2010 Kelly Mott
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PART 2: BORROWING FROM THE HUNDREDS
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1.When we subtract, we start with the ones column. 2.4 tens - 6 tens…can’t be done …so we have to borrow from the hundreds: _Hundreds_ _Tens_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 343 - 161 __________________
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1.When we subtract, we start with the ones column. 2.5 tens - 8 tens…can’t be done …so we have to borrow from the hundreds: _Hundreds_ _Tens_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 259 - 182 __________________
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1.When we subtract, we start with the ones column. 2.5 tens - 9 tens…can’t be done …so we have to borrow from the hundreds: _Hundreds_ _Tens_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 458 - 295 __________________
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1.When we subtract, we start with the ones column. 2.8 tens - 9 tens…can’t be done …so we have to borrow from the hundreds: _Hundreds_ _Tens_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 286 - 196 __________________
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1.When we subtract, we start with the ones column. 2.2 tens - 9 tens…can’t be done …so we have to borrow from the hundreds: _Hundreds_ _Tens_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 423 - 390 __________________
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Does this make sense? Copyright © 2010 Kelly Mott
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Practice Problems Copyright © 2010 Kelly Mott
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Practice 1: Regrouping Hundreds to Tens 922 551 226 131 A.B. Copyright © 2010 Kelly Mott --
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Practice 2: Regrouping Hundreds to Tens 443 290 552 471 C.D. Copyright © 2010 Kelly Mott --
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Practice 3: Regrouping Hundreds to Tens 239 143 928 846 E.F. Copyright © 2010 Kelly Mott --
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Practice 4: Regrouping Hundreds to Tens 367 184 485 391 G.H. Copyright © 2010 Kelly Mott --
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HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGE 69 Copyright © 20010Kelly Mott
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Copyright © 2010 Kelly Mott
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How did you do? Copyright © 2010 Kelly Mott
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PART 3: BORROWING MORE THAN ONCE
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 343 - 164 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 422 - 265 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 536 - 258 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 658 - 199 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 345 - 186 __________________
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Does this make sense? Copyright © 2010 Kelly Mott
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Practice Problems Copyright © 2010 Kelly Mott
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Practice 1: Regrouping More Than Once 951 273 613 464 A.B. Copyright © 2010 Kelly Mott --
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Practice 2: Regrouping More Than Once 766 689 474 397 C.D. Copyright © 2010 Kelly Mott --
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Practice 3: Regrouping More Than Once 856 368 323 178 E.F. Copyright © 2010 Kelly Mott --
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Practice 4: Regrouping More Than Once 578 289 426 397 G.H. Copyright © 2010 Kelly Mott --
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HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGE 71 Copyright © 20010Kelly Mott
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Copyright © 2010 Kelly Mott
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How did you do? Copyright © 2010 Kelly Mott
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PART 4: SUBTRACTION WITH ZEROS
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Zero in the Ones Copyright © 2010 Kelly Mott
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 680 - 343 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 390 - 132 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 450 - 307 __________________
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Practice 1: Zero in the Ones 880 333 560 252 A.B. Copyright © 2010 Kelly Mott --
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Practice 2: Zero in the Ones 620 419 270 101 C.D. Copyright © 2010 Kelly Mott --
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Zero in the Tens Copyright © 2010 Kelly Mott
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 305 - 234 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 703 - 451 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 408 - 277 __________________
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Practice 1: Zero in the Tens 903 621 502 260 A.B. Copyright © 2010 Kelly Mott --
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Practice 2: Zero in the Tens 209 171 606 495 C.D. Copyright © 2010 Kelly Mott --
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More than 1 Zero Copyright © 2010 Kelly Mott
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 500 - 235 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 300 - 152 __________________
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1.When we subtract, we start with the ones column. 2._Hundreds_ _Tens_ _Ones_ Copyright © 2010 Kelly Mott Understanding Regrouping in Subtraction 600 - 339 __________________
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Practice 1: More than 1 Zero 700 553 600 464 A.B. Copyright © 2010 Kelly Mott --
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Practice 2: More than 1 Zero 800 452 300 185 C.D. Copyright © 2010 Kelly Mott --
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PAM Problems Copyright © 2010 Kelly Mott
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1. A soccer league needed to sell 650 candles to raise enough money for new uniforms. The players already sold 315 candles. How many more do they need to sell? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott
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2. Sadie drove to the beach. When she started her trip the car showed 672 miles. When she returned, she read 708 miles. How many miles did she travel? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott
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3. Maria had $4.56. She earned $3.50 more. How much money does she have in all? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott
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4. The pilot flew 2,859 miles in a week. The following week he flew 1,042 miles. How many miles did he fly in all? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott
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HOMEWORK SUPPLEMENTAL: ORANGE MATH STEPS PAGES 73-74 Copyright © 20010Kelly Mott
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Copyright © 2010 Kelly Mott
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How did you do? Copyright © 2010 Kelly Mott
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Does this make sense? Copyright © 2010 Kelly Mott
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HOMEWORK Everyday Math Journal Page: 46- 48 Copyright © 20010Kelly Mott
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Copyright © 2010 Kelly Mott
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