Show:
Build the Number
Place Value
Rounding
Estimating
Adding and Subtracting
Multiplying
1

5000 + 500 +20 + 6 

5526

1

What place value is the 8 in?

9,578

ones

1

Round the decimal to the nearest tens place: 

34

30

1

Estimate using rounding:

 38 + 11

40 + 10 

50

1

43 + 31

74


1

9 × 7

63

2

6000 + 800 + 3 + 50

6853

2

What place value is the 9 in?

8,981

hundreths

2

Round the decimal to the nearest tens place: 

27

30

2

Estimate using rounding:

69 + 52

70 + 50

120

2

645+78

723


2

5 x 23

115

3

6,000 + 500 + 90 + 2 

6,592

3

What place value is the 4 in?

45,678

ten thousandths

3

Round the decimal to the nearest tens place: 

589

590

3

Estimate using Rounding 

152 - 47

150 - 50 

100

3

325 +81

406

3

7 x 11

77

4

10 + 1 + 6000 + 400 + 40

6,451

4

What place value is the 2 in?

12,379

thousandths 

4

Round the decimal to the nearest tens place:

 765

770

4

Estimate using rounding: 

21 x 42 

20 x 40 

800

4

93 - 36

57

4

8 x 8

64

5

10 + 5000 + 799 + 1 + 80

5,890

5

What place value is the 4 in?

1,029,571,845

tenths

5

Round the decimal to the nearest tens place:

985

990

5

Estimate using rounding: 

37 ÷ 11

40÷10 = 

4

5

248 - 131

117


5

9 x 5

45