2-Digit Estimating Products

Jenny is estimating the product of 29 x 66. She rounds the factors to 30 x 70 and gets a product of 2,100. Is that true or false?

• true

• false

Tags

CCSS.5.NBT.A.4

Use Mental Math to solve: 70 x 60

• 5,600

• 4,200

• 4,800

• 4,900

Tags

CCSS.5.NBT.A.2

CCSS.5.NBT.B.5

Use Mental Math to solve: 50 x 90

• 4,000

• 6,300

• 5,400

• 4,500

Tags

CCSS.5.NBT.A.2

CCSS.5.NBT.B.5

ROUND to estimate: 39 x 37

• 2,000

• 900

• 1,200

• 1,600

Tags

CCSS.5.NBT.A.4

ROUND to estimate: 25 x 81

• 1,800

• 2,400

• 1,600

• 2,700

Tags

CCSS.5.NBT.A.4

ROUND to estimate: 64 x 76

• 5,400

• 4,200

• 3,600

• 4,800

Tags

CCSS.5.NBT.A.4

ROUND to estimate: 88 x 23

• 1,800

• 2,400

• 2,700

• 2,100

Tags

CCSS.5.NBT.A.4

Which expression would be best to use for 62 x 23?

• 60 x 20
• 60 x 30
• 60 x 2
• 6 x 2

Tags

CCSS.4.NBT.B.5

Each section of a ballpark has the same number of seats. There are 910 seats in each section. About how many seats are in 8 sections?

• 7,200 seats
• 900 seats
• 720 seats
• 9,000 seats

Tags

CCSS.4.OA.A.3

CCSS.3.OA.D.8

CCSS.7.EE.B.3

Estimate. 62 X 3=

• 180
• 210
• 150
• 240

Tags

CCSS.4.NBT.B.5