Compensation and Decompensation in Math Quiz

Applying compensation in mental math: What is 48 + 37? Use compensation to make the calculation easier.

• 85

• 60

• 92

• 75

Applying compensation in mental math: If 56 - 29 = 27, what is 56 - 30?

• 25

• 28

• 26

• 30

Applying compensation in mental math: If 85 + 47 = 132, what is 85 + 50?

• 140

• 135

• 130

• 125

Applying compensation in mental math: What is 63 x 8? Use compensation to simplify the calculation.

• 504

• 432

• 560

• 319

Applying compensation in mental math: If 94 ÷ 2 = 47, what is 94 ÷ 4?

• 23

• 188

• 94

• 47

Using decompensation to simplify calculations: What is 356 - 198? Use decompensation to simplify the subtraction.

• 457

• 234

• 600

• 158

Using decompensation to simplify calculations: If 425 + 198 = 623, what is 425 + 200?

• 625

• 630

• 620

• 627

Using decompensation to simplify calculations: What is 764 ÷ 4? Use decompensation to make the division easier.

• 198

• 185

• 191

• 176

Using decompensation to simplify calculations: If 589 x 6 = 3534, what is 589 x 5?

• 2946

• 3534

• 5890

• 2945

Using decompensation to simplify calculations: What is 837 + 299? Use decompensation to simplify the addition.

• 837 + 200 + 100 + 9 = 1146

• 837 + 200 + 90 + 9 = 1136

• 837 + 300 + 90 + 9 = 1236

• 837 + 200 + 80 + 9 = 1126