Number Forms
Rounding and Estimating
Adding and Subtracting
Place Value
Multiplying and Dividing
100

Expand 25

20 + 5

100

Round 12 to the nearest 10s

10

100

6 + 7

13

100

Which number is in the thousands place? 67,676

7

100

4 x 4

16

200

Write the number 15 in word form

Fifteen

200

Round 16 to the nearest 10s

20

200

115 + 52

167

200

Which number is in the hundredths place? 15.842

4

200

25 / 5

5

300

Write the number forty-five in number form

45

300

Round 6.7 to the nearest whole number

7

300

186 - 19

167

300

Which number is in the millions place? 123,456,789

3

300

15 x 3

45

400

Expand 235

200 + 30 + 5

400

Round 5.17 to the nearest tenth

5.2

400

3 - 1.33

1.67

400

Which number is in the ones place? 123,456,789

9

400

46 / 2

23

500

Write out 400 in base 10 form

100 x 4

500

Estimate 43 + 26

70

500

7.6 - 6.7

0.9

500

Which number is in the ten-thousands place? 123,456,789

5

500

33.5 x 2

67