4th Grade 2-Digit Multiplication Review

John purchased 36 books. Each book has 81 pages. What is a good way to estimate the total number of pages John bought?

• 20 x 80

• 40 x 90

• 30 x 90

• 40 x 80

Tags

CCSS.4.NBT.B.5

Calculate the product of 57 and 50. Show your work.

• 2,850

• 2,750

• 2,950

• 2,650

Tags

CCSS.4.NBT.B.5

The product of two numbers is 7,200. One of the numbers is 80. What is the other number?

• 80

• 100

• 90

• 72

Tags

CCSS.4.NBT.B.6

Which two expressions are equal to 420?

• 42 x 1

• 42 x 10

• 420 x 1 + 1

• 40 x 10 + 2 x 10

Tags

CCSS.5.NBT.B.5

John is creating 47 bracelets. He puts 19 beads on each bracelet. Use rounding to estimate the number of beads John needs. What is the exact number of beads?

• Estimate - 600 beads

  Exact - 693 beads

• Estimate - 1,000 beads

  Exact - 919 beads

• Estimate - 900 beads

  Exact - 863 beads

• Estimate - 1,000 beads

  Exact - 893 beads

Tags

CCSS.4.NBT.B.5

Kenneth ran 17 laps 18 times in May. He ran 13 laps 14 times in June.

Part A Write equations to find the total number of laps Kenneth ran in the 2 months.

Part B - For multiple choice Use a strategy of your choice to find the total number of laps Kenneth ran.

• 235
• 512
• 764
• 1000

Tags

CCSS.3.OA.D.8

A deli has 14 bins of rolls. Each bin is filled with 24 rolls. Using your knowledge of multiplication, find the total number of rolls. THEN, use rounding to check if your answer is reasonable.

• 420 rolls

  20 x 20 = 400

  Reasonable

• 38 rolls

  10 x 4 = 40

  Reasonable

• 336 rolls

  10 x 25 = 250

  Reasonable

• 672

  30 x 20 = 600

  Reasonable

Tags

CCSS.4.NBT.B.5

A car repair shop charges $95 to fix flat tires. How much did the repair shop earn if 18 cars were repaired in April and 23 cars were repaired in May? Write and solve the equations.

• $4,000

• $4,135

• $3,520

• $3,895

Tags

CCSS.3.OA.D.8

Which of the following uses properties of operations to help find 45 x 32?

• 4 x 3 + 5 x 2

• 45 + 32

• (40 + 5) x (30 + 2)

• 40 x 5 x 30 + 2

Tags

CCSS.4.NBT.B.5

One painting is 29 feet long and 14 feet wide. Another painting is 14 feet long and 20 feet wide. What is the difference between the areas of the two pictures? Use equations to show your work.

• 126 square feet
• 154 square feet

• 406 square feet
• 77 square feet