Decimals

Addition

100

2.8+9.2

A 11

B 12

C 11.9

B 12

200

2+33.99

A 36

B 35.98

C 35.99

C 35.99

300

46.98+77.9

A 105.1

B 111.99

C 124.88

C 124.88

400

24.65+99.0

A 123.56

B 123.65

C 123.66

B 123.65

500

222.999+333.898

A 555.897

B 556.987

C 556.897

C 556.897

Subtraction

100

  4.5-4.1

A 0.3

B 04

C 0.4

C 0.4

200

2.6-2.5 

A  0.2

B 1.0

C 0.1

C 0.1

300

29.9-1.2

A 28.6

B 28.8

C 28.7

C 28.7

400

33.99-22.99

A 12

B 11

C 10

B 11

500

3322.4455-4455.2233

A -1132.7778

B -3211.7778

C -1123.8887

A -1132.7778

Multiplication

100

1.9 x 4.08

A 7.752

B 7.572

C 7.257

A 7.752

200

6.5 x 4.5

A 29.25

B 25.29

C 20.10

A 29.25

300

45.67 x 45.67

A 2058.7489

B 2085.7489

C 2085.7498

B 2085.7489

400

44.77 x 44.77

A 2004.3529

B 2004.2935

C 2004.3629

A 2004.3529

500

500.5 x 500.55

A 250525.273

B 250525.237

C 250525.275

C 250525.275

Division

100

6/5.8

C 1.034

200

2.9/6.2

A 2.138

B 2.13793103448

C 2.318

Round to the nearest thousandth

 A 2.138

300

2.1/1.2

A 1.57

B 1.75

C 1.576

B 1.75

400

1234.456/1234.987

A 1.00086048301

B 1.00086

C 1

Round to the nearest ones

C 1

500

92.65/29.56

A 3.111

B 3.134

C 3,134

round to the nearest thousandth

B 3.134

Mystery

100

2.66/6.22

A -3.56

B -3.65

C -3.45

A -3.56

200

1.2 x 1.2

A 4.2

B 2.440

C 2.44

 WHICH ONE IS NOT RIGHT

A 4.2

300

653.09/356.90 

A 1.83

B 1.38

C 1.829

round to the nearest hundredths place 

A 1.83

400

123.9+2.456

A 126.536

B 126.356

C 123.365

B 126.356

500

33332.3+444.145

A 33886.554

B 33766.123

C 33667.554

D 33776.445

D 33776.445