Estimate Products Using Rounding

EStimate the difference of 47 and 21.

• 20
• 30
• 40
• 50

Round to the nearest ten.
118

• 110
• 115
• 120
• 20

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest hundred.
 487

• 490
• 400
• 500
• 480

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest hundred.
 487

• 490
• 400
• 500
• 480

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 157 to the nearest 10

• 150
• 160
• 155
• 200

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 2579 to the nearest 100

• 2500
• 2600
• 3000
• 2580

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

When you see the word ABOUT in math, you know to . . . ?

• add

• subtract

• estimate

• guess

Round 567 to the nearest hundred.

• 500
• 550
• 600
• 400

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round and Estimate the product. 32 x 3=

• 60

• 90

• 50

• 900

Tags

CCSS.4.NBT.B.5

Estimate the sum of 120+190 by rounding to the nearest hundreds

• 100
• 200
• 0
• 300