Math challenge

Adding decimals

100

The answer to 2,568.4+6,873.7

9,442.1

200

The answer to 63,487.7+16,592.27

80,079.97

300

The answer to 398,569.92+693,648.04

1,092,217.96

400

The answer to 9,876,543.692+2,356,790.429

12,223,334.121

500

The answer to 39,167,840.9625+74,692,318.3697

113,860,159.3322

Multiplication

100

The answer to 6 x 12

72

200

The answer to 8 x 19

152

300

The answer to 23 x 61

1,403

400

The answer to 23,178 × 4

92,712

500

The answer to 288 x 29

8,352

Expressions

100

The answer to 6n

n=9

x=54

200

The answer to 14x

x=13

x=182

300

The answer to 36x - 33

x=3

x=75

400

72y-63=9                                                                 Solve for y

x=1

500

The answer to 3(2x-5)+4=19

x=5

Subtracting fractions

100

The answer to 2/4 - 1/4

1/4

200

The answer to 6/12 - 2/24 

5/12 or 10/24

300

The answer to 7/8-2/32

26/32 or 13/16

400

The answer to 6/8-3/24

5/8

500

The answer to 7/26-3/13

1/26 or 2/13

Division

100

The answer to 96÷8

12

200

The answer to 132÷12

11

300

The answer to 375÷15

25

400

The answer to 47,893÷101

47

500

The answer to 12,345÷3

4,115