Expanded and Estimation Multiplication

6 X 22 =

• 20 + 2 X 6

  12 + 120 =

  132

• 20 + 6 X 2

  12 + 40 =

  52

• 26 + 20 X 6

  120 + 156 =

  276

• 100 + 100

  200

Tags

CCSS.3.OA.A.1

CCSS.3.OA.A.3

CCSS.3.OA.B.5

CCSS.3.OA.C.7

7 X 64 =

• 70 + 4 X 6 =

  25 + 420 =

  445

• 60 + 4 X 7 =

  28 + 240 =

  268

• 40 + 6 X 7

  42 + 280 =

  322

• 40 + 7 X 6

  42 + 240 =

  282

Tags

CCSS.3.OA.A.1

CCSS.3.OA.B.5

CCSS.3.OA.C.7

To estimate the answer to the following question, which would be the best choice?

7 X 31 =

• 10 X 30

• 10 X 31

• 7 X 30

• 7 X 31

The best way to estimate the answer to the following question would be?

8 X 62

• 8 X 60

• 10 X 60

• 8 X 70

• 10 X 62

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.3

CCSS.3.OA.D.8

5 cartons hold 54 juice boxes each. Are there enough juice boxes for 250 students?

• 5 X 50 = 250

  Yes

• 5 X 60 = 300

  Yes

• 10 X 5 = 50

  No

• 10 X 50 = 500

  Yes

Tags

CCSS.3.OA.A.1

CCSS.3.OA.A.3

CCSS.3.OA.C.7

CCSS.3.OA.D.8

Michael, Joh and Tiffany each have $42. Do they have enough money to buy a second - hand bike for $150?

• 3 X 50 = 150

  Yes

• 3 X 40 = 120

  No

• 5 X 5 = 25

  No

• 10 X 42 = 420

  Yes

Tags

CCSS.5.NBT.B.5

CCSS.5.OA.A.2