Numbers and Operations Base 10

Rounding

100

68 rounded to the nearest 10

70

200

814 rounded to the nearest hundred

800

300

When rounding to the nearest 10, what is the least whole number that rounds to 730?

725

400

When rounding to the nearest 10, what is the greatest whole number that rounds to 560?

564

500

Round 37,965 to the nearest 100

38,000

Unknown Number

100

343 +7 =300 + ?

50

200

420 - 60 = 400 - ?

40

300

725 - 98 = 725 -100 + ?

2

400

5 x 2 x ? = 80

8

500

70 x 3 = ?

210

Comparisons

100

75,340 > 75,3?9

2, 1, or 0

200

Select >, < or =

4.3 ? 4.1

>

300

What makes this inequality true?

4.375 is > ____

a. 4.40

b. 4.53

c. 4.362

d. 4.381

4.362

400

Select >, < or =

3.42 ? 3.420

=

500

356/10 = 300/10 + ?/10 + 16/10

40

More Unknown Numbers

100

20 x 42 = ?

840

200

8597 + 6435 = ?

15,032

300

5.23 x 4 = ?

20.92

400

? - 30.5 = 21.9

52.4

500

Which equation has the same value as 5.2 -3.1 = ?

a. ? - 3.1 = 5.2

b. 3.1 + ? = 5.2

c. 5.1 + ? = 3.1

b

True or False

100

675 = 6 + 70 + 500

False

200

900+80 +3 > 983

False 

300

14 x 32 = (10 + 4) x (30 +2)

True

400

573 ones = 500 + 70 +3

True

500

Which equations shows a correct strategy and product for expression shown? 

0.4 x 0.8 

a. 4/10 x 8/10 = 32/10

b. 4/10 x 8/10 - 32/100

a. false

b. true