Adding
Subtracting
Multiplying
Dividing
Mystery
100

12.2 + 9.1

21.3

100

24.3 - 12.1

12.2

100

8.2 x 3

24.6

100

2.5 / 5

.5

100

Estimate: 24.83 + 25.01

~ 50

200

24.81 + 9.1

33.91

200

93.5 - 24.4

69.1

200

9.65 x 4

38.6

200

6 / 0.2

30

200

Round 56.27 to the nearest whole number.

56

300

562.8 + 19.6

582.4

300

245.2 - 89.5

155.7

300

3.2 x 6.4

20.48

300

0.9 / 3

.3

300

Estimate 89.3 - 30

~ 60

400

45.6 + 37.568

83.168

400

68.34 - 25.6

42.74

400

12.5 x 2.3

28.75

400

1.2 / 0.1

12

400

Estimate 8.25 x 4.3

~ 32

500

1,950.36 + 573.94

2,524.3

500

1,023.65 - 9.99

1013.66

500

45.3 x 6.5

294.45

500

0.18 / 0.09

2

500

Estimate 1.5 / 0.3

~ 5