Chapter 3: Multiply by 2-Digit Numbers

40 x 50

• 200
• 2,000
• 20
• 90

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CCSS.3.NBT.A.3

CCSS.3.OA.A.1

If it costs $28 for a student to go to the zoo, how much for 23 students?

• $644
• 645
• 744
• 745

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CCSS.3.OA.A.1

CCSS.3.OA.A.3

Estimate: 22 x 26

• 60
• 440
• 600
• 400

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CCSS.3.NBT.A.1

CCSS.3.OA.C.7

25 x 10 = 250

• True
• False

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CCSS.4.NBT.B.5

19 x 20 = 380

• True
• False

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CCSS.4.NBT.B.5

15 x 100 = 150

• True
• False

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CCSS.3.NBT.A.3

90 x 100 = 9,000

• True
• False

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CCSS.3.NBT.A.3

28 x 30 = 2,100

• True 
• False

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CCSS.4.NBT.B.5

There are 14 boxes of pens. If each box has 100 pens, how many pens are there?

• 14,000
• 14
• 140
• 1,400

Tags

CCSS.3.OA.A.1

CCSS.3.OA.A.3

CCSS.3.OA.C.7

What is a reasonable estimate for this problem:
23 x 48

• 20 x 50
• 20 x 40
• 23 x 48
• 23 x 50