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Math Review

Ways to write numbers Standard form: 1,235 Expanded form: 1,000 + 200 + 30 + 5 Word form: one thousand two hundred thirty five Model form:

Your turn: 1,498 Standard form: _____________ Expanded form: ________________ Word form: ____________________________ Model form:

1, 8 7 9, 2 6 5 Place Value millions Hundred -thousands Ten-thousands hundreds tens ones

Write the number that has… 1 in the thousands place 6 in the hundreds place 0 in the tens place 5 in the ones place How do you say this number?

Even or Odd? LOOK AT THE ONES PLACE!!!!!! Even = 0, 2, 4, 6, 8, in the ones place example: 2,348 Odd = 1, 3, 5, 7, 9 in the ones place example: 89,573

Even or Odd? 61

Even or Odd? 1,908,372

Even or Odd? 210

Comparing Numbers > < += Always line up place value to compare Look at the biggest place value first 3,456 3,465 So 3,456 < 3,4654

> < = ? 45,782 _____45,800

> < = ? 894 _____3,764

Ordering Numbers ALWAYS READ THE QUESTION UNTIL YOU UNDERSTAND IT!!! Least to greatest, most to least, largest to smallest, etc… Use process of elimination!

Put the numbers in order from greatest to least. 532 4,576 501 5,483

Fractions 3 = part (how many parts/pieces are being looked at) ___ 4 = whole (how many EQUAL parts its broken into or how many pieces in a set)

Write the fraction:

What fraction are white? Write the fraction: What fraction are white?

Draw a circle. Show ½ shaded.

Draw 9 circles. Shade in 2/9 of them.

Money: Counting Coins Always start with the largest coin and then count towards the smallest

How much money?

Compare the money: > < or ? Ninety five cents _____ Q Q D D D N P P P

- $3.48 Money: Making Change A toy costs $3.48 and you pay with $5 $5.00 - $3.48

Money: Making Change A bag of candy costs $2.76 and you pay with $5 What is the change?

Addition Some are simple (no carrying or regrouping) 1,345 + 1,213

Addition Some are simple (no carrying or regrouping) 2,457 + 1,021

Addition Some you have to work a little harder with carrying or regrouping 739 + 653

Addition Some you have to work a little harder with carrying or regrouping 59 + 38

Subtraction Some are simple (no borrowing) 753 - 533

Subtraction Some are simple (no borrowing) 93 - 71

Subtraction Some you have to work a little harder and borrow before you subtract 165 - 198 More on the floor go next door. More on the top, not need to stop.

Subtraction Some you have to work a little harder and borrow before you subtract 32 - 28 More on the floor go next door. More on the top, not need to stop.

+ - Fact Families Make the four number models for 5 3 and 8

3 x 4 = Turn around fact: 4 x 3 Multiplication Repeated addition: 3+3+3+3 or 4+4+4 Array

Multiplication Solve the problems the teacher says

X ÷ Fact Families Make the four number models for 5 3 and 15

Estimating/ Ballpark Estimates Round to the nearest 10 50 234 230 Round to the nearest 100 297 300 2,416 2,400

Other math skills Telling Time, elapsed time, AM PM Measurement units Comparing/ ordering measurement measuring./estimating length Graphs, charts, and tables Matching number stories to number models Find a missing number or symbol in a number sentence Patterns 2D and 3D shapes Symmetry