Addition
Subtraction
Multiplication
Multiply by 10, 100, 1000
Divide by 10, 100, 1000
100

.7 + .1

.8

100

.5 - .3

.2

100

.3 x .4 

.12

100

.2 x 10

2

100

8.6/10 

.86

200

.34 +.22

.56

200

.32 - .12

.2

200

.8 x .9

.72

200

.56 x 10 

5.6

200

7.6/100

.076

300
1.45 + .72

2.17

300

1.34 - .29

1.05

300

.5 x 7

3.5

300

1.3 x 100

130

300

.3/100

.003

400

2.56 + 1.73

4.29

400

2.55 - 1.72

.83

400

2.2 x 6

13.2

400
.0089 x 100 

.89


400

7.98/1000

.00798

500

3.59 + 2.99

6.58

500

4.29 - 2.99

1.3

500

4.6 x 3

13.8

500

5.76 x 1000

5760

500

56969.24/1000

56.96924