Two-Digit Multiplication Review

40x30

• 12

• 70

• 120

• 1,200

Tags

CCSS.4.NBT.B.5

70x90

• 630

• 7,200

• 6,300

• 1,600

Tags

CCSS.4.NBT.B.5

50x80

• 1,300

• 4,000

• 400

• 4,500

Tags

CCSS.4.NBT.B.5

Which of the following is the best estimate for 31x68?

• 1,800

• 2,400

• 2,100

• 2,800

Tags

CCSS.4.NBT.B.5

Which of the following is the best estimate for 48x12?

• 500

• 5,000

• 400

• 1,000

Tags

CCSS.4.NBT.B.5

Which of the following is the best estimate for 18x79?

• 1,600

• 700

• 160

• 1,400

Tags

CCSS.4.NBT.B.5

Paul solve 54x23. What is the mistake in his work?

• Paul forgot to add the zero in the second row when multiplying by 20.

• Paul forgot to add the 1 at the top when multiplying 5x3.

• Paul forgot to regroup when he was solving the addition problem.

• Paul added 6+8 and got 13 instead of 14.

Tags

CCSS.5.NBT.B.5

Paige solves 42x36 using an area model. Which partial product is incorrect?

• 700

• 240

• 60

• 12

Tags

CCSS.4.NBT.B.5

When solving 29x53 using an area model, what are the four partial products?

• 100, 450, 60, 27

• 100, 45, 60, 27

• 1,000, 450, 60, 27

• 1,000, 450, 60, 18

Tags

CCSS.4.NBT.B.5

When solving 87x21 using an area model, what are the four partial products?

• 1,600, 140, 80, 7

• 1,600, 560, 80, 7

• 1,600, 560, 80, 8

• 160, 140, 80, 7

Tags

CCSS.4.NBT.B.5