Subtract 23 36 77 93 41 31 41 89 75 17 12 48 87 32 18 24 49 36 18 81 37 66 56 11 34 92 73 11 15 8 52 29 9 17 55 39 75 32 43 64 97 64 76 85 43 25 19 26 28 57 22 33 26 43.

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Presentation transcript:

Subtract 23 36 77 93 41 31 41 89 75 17 12 48 87 32 18 24 49 36 18 81 37 66 56 11 34 92 73 11 15 8 52 29 9 17 55 39 75 32 43 64 97 64 76 85 43 25 19 26 28 57 22 33 26 43 - - - - - - - - - - - - - - - - - - - - - - - - - - -

Subtract Mentally. Write the difference. Subtract 4 from: Subtract 6 from: 28 27 26 25 50 49 48 47 _____________________________ _____________________________ Subtract 3 from: Subtract 2 from: 22 21 20 19 10 12 14 16 _____________________________ ______________________________ Subtract 20 from: Subtract 10 from: 70 60 50 40 33 43 53 63 _____________________________ _______________________________ Subtract 30 from: Subtract 5 from: 71 72 73 74 15 14 13 12

Circle the ways to make each number. 30 – 5 30 + 5 15 + 10 10 + 15 21 - 10 10 – 1 11 + 2 26 - 15 10 + 3 + 5 6 + 13 23 – 5 23 – 4 25 11 18 6 + 3 11 – 11 20 – 10 15 – 8 14 + 14 42 – 14 28 – 0 8 + 5 + 15 20 – 5 10 + 6 25 – 10 20 + 5 28 10 15 Circle the number needed to make the top number. 31 21 15 13 + ? 8 or 9 28 - ? 7 or 8 27 - ? 6 or 7 6 + ? 9 or 8 19 - ? 5 or 4 22 - ? 8 or 7 10 + ? 21 or 11 41 - ? 10 or 11 35 - ? 5 or 4 23 12 20 5 + ? 7 or 6 22 - ? 10 or 11 20 - ? 9 or 8 15 + ? 4 or 5 12 + ? 7 or 8 22 - ? 2 or 3 12 + ? 11 or 10 27 - ? 4 or 5 29 - ? 6 or 7

Regroup 1 ten as 10 ones. Write the missing numbers. Regroup then subtract. Example 8 tens 5 ones = ______ tens ______ ones 4 tens 6 ones = 7 tens 2 ones = 1 ten 4 ones = ______tens ______ ones 61 – 47 = 42 – 8 = Tens Ones 6 1 4 7 Tens Ones 4 2 8 12 3 4 57 – 28 = 14 – 9 = Tens Ones 5 7 2 8 Tens Ones 1 4 9

Line up the tens and ones. Regroup then subtract. 83 – 27 = 26 – 18 = 22 – 17 = Tens Ones Tens Ones Tens Ones 23 – 9 = 28 – 12 = 54 – 27 = Tens Ones Tens Ones Tens Ones

Estimate the difference. Round the numbers to the nearest ten. 7 6 - 5 2 about 2 9 - 2 4 about 4 3 - 3 7 about 5 8 - 3 7 about 1 7 - 9 about 4 1 - 2 6 about 9 3 - 7 4 about 7 2 - 3 3 about 5 0 - 3 1 about

Subtract. Add to check 6 3 - 4 5 + 5 5 - 2 8 + 7 8 - 4 2 + 2 3 - 1 6 + 1 3 - 7 + 3 6 - 9 + 3 5 - 2 2 + 9 7 - 3 9 + 4 9 - 2 8 +

Add or subtract from left to right. 32 – 15 + 8 = 41 + 7 - 28 = 15 + 5 - 8 = 47 – 2 – 31 = 27 + 6 – 15 = 50 – 20 + 41 = 61 – 37 – 17 = 5 + 10 + 15 = 87 – 30 + 18 =

Problem Solving. Jack bakes 14 red cookies. Jill bakes 9 green cookies. If Mike eats one dozen cookies how many cookies are left? Bob bought 5 boxes of candy. If there are 4 pieces of candy in each box. How many pieces of candy does Bob have? Make a table. Tom earned 3 quarters, 2 nickels, 1 dime, and 4 pennies for his allowance. He buys a coke for 65 cents. How much money does Tom have left? There are 6 eggs in each basket. Jason needs 24 eggs to make dinner. How many baskets does he need. Make a table. Boxes Pieces of Candy Candy baskets Baskets Eggs