SBAC Math: Chapter 3

Make a 10 or 100 to subtract mentally.

$299 – $105

• $100

• $200

• $150

• $125

Make a 10 or 100 to subtract mentally.

798 – 332

• 330

• 400

• 370

• 600

Make a 10 or 100 to subtract mentally.

896 – 201

• 700

• 400

• 500

• 600

Estimate. Round each number to the indicated place value. Then solve.

31 – 9; tens

• 30

• 20

• 15

• 10

Estimate. Round each number to the indicated place value. Then solve.

53 – 16; tens

• 30

• 20

• 40

• 10

Estimate. Round each number to the indicated place value. Then solve.

327 – 174; hundreds

• 300

• 200

• 100

• 10

Estimate. Round each number to the indicated place value. Then solve.

$3,257 – $189; hundreds

• 100

• 3,200

• 3,100

• 3,010

Estimate. Round each number to the indicated place value.

4,987 – 3,112; tens

• 4,980

• 4,990

• 3,100

• 3,110

Estimate. Round each number to the indicated place value. Then solve.

53 – 16; tens

• 30

• 20

• 40

• 10

Subtract Mentally

86-14=_____

• 70

• 71

• 72

• 74