Addition
Subtraction
Rounding
Add/Sub Decimals
Place Values
100

100 + 500

600

100

90 -10

80

100

ROUND 789 TO NEAREST TENS

790

100

12.4 + 9.7

22.1

100

89,886

HUNDREDS

200

905 + 1201

2106

200

100 - 25

75

200

ROUND 678 TO NEAREST 100


700


200

987.9 - 4.5

983.4

200

789,125

HUNDRED THOUSAND

300

34 + 678

712

300

56 -25

31

300

ROUND 9876 TO NEAREST 10


9880

300

56.25 + 0.25

56.50
300

57.24

TENTHS

400

75,354 + 12,799

88,153

400

8,988 - 154

8,834

400

ROUND 12,543 TO NEAREST 100

12,500

400

100 -25.45

74.55

400

58.90

HUNDREDTHS

500

0 + 0

0

500

99 - 75

24

500

ROUND 35 TO NEAREST 100

0

500

14,789.3 + 6,865.9

21,655.2

500

123,567

THOUSAND