Go Math! Chapter 3 Mid Chapter Checkpoint Review/Grade 4

What is the first step in estimating 53 x 28?

• Solve the problem.
• Round the numbers
• Find compatible numbers
• Round the numbers OR find compatible numbers

Tags

CCSS.4.NBT.B.5

Mrs. Marino and Mrs. Hering's class is taking a field trip to the Planetarium. The trip will cost $17 for each student. There are 23 students in her class. What is a good estimate for the cost of the students' field trip?

• $20 x 20 = $400 
• $20 x 30 = $600
• $10 x 20 = $200

Tags

CCSS.4.NBT.B.5

Janelle wrote the following on the board. What is the unknown number?
30 x 20 = 30 x (2 x 10)
             = (30 x 2) x 10
             =       ?    x 10
             = 600

• 50
• 60
• 6

Tags

CCSS.5.NBT.B.5

Find the product.
35 x 20

• 500
• 600
• 700

Tags

CCSS.4.NBT.B.5

Find the product.
10 x 30

• 300
• 30
• 3,000

Tags

CCSS.4.NBT.B.5

Find the product.
57 x 30

• 1,170
• 1,710
• 1,110

Tags

CCSS.4.NBT.B.5

Find the product. 
16 x 80

• 1,820
• 1,028
• 1,280

Tags

CCSS.5.NBT.B.5

Find the product. 
70 x 40

• 2,800
• 280
• 28

Tags

CCSS.4.NBT.B.5

Find the product.
30 x 50

• 150
• 1,500
• 15

Tags

CCSS.4.NBT.B.5

Find the product.
60 x 70

• 420
• 4,200
• 42

Tags

CCSS.4.NBT.B.5