Decimals

Addition

100

1.5+3.4

4.9

200

10.6+5.72

16.32

300

^42.3+32.2

74.5

400

51.24+32.7

83.94

500

104.67+13.056

117.726

Subtraction

100

2.1-1.2

0.9

200

10-0.8

9.2

300

15.6-3.5

12.1

400

30.05-12.06

17.99

500

52.1-25.6

26.5

Multiplication

100

0.6x0.4

0.24

200

3.0x0.4

1.2

300

0.5x1.2

0.6

400

1.2x2.1

2.52

500

3.2x1.4

4.48

Area

100

Area of a rectangle with sides 0.5 inch by 0.3 inch

0.15 inches

200

Area of a rectangle with sides 2 inch by 0.5 inch

1 inch

300

Area of a rectangle with sides 1 inch by 3.1 inches 

3.1 inches 

400

Area of a rectangle with sides 1.5 inch by 2.5 inch

3.75 inches

500

Area of a rectangle with sides 2.3 inch 1.8 inch

4.14 inches

Random

100

What is 8x7

56

200

What is the formula for Area of a Triangle 

bxh divided by 2 

or 

bxh times 1/2

300

What place value is in the hundredths place in 

124.57

7 

400

What 14x13

182

500

What is 36 divided by 6

6