Rounding and estimating differences

What is 75 rounded to the nearest 10?

• 60

• 70

• 80

• 76

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is 123 rounded to the nearest 10?

• 120

• 130

• 125

• 124

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is 42 rounded to the nearest 10?

• 30

• 40

• 50

• 43

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is 546 rounded to the nearest 10?

• 540

• 550

• 555

• 547

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is 99 rounded to the nearest 10?

• 80

• 90

• 100

• 98

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Estimate the sum of 37+99 by rounding to the nearest tens

• 120
• 150
• 140
• 136

Estimate the sum of 52+59 by rounding to the nearest tens

• 110
• 100
• 111
• 90

Estimate the sum of 420-190 by rounding to the nearest hundreds

• 100

• 200

• 0

• 300

Estimate the sum of 657-371 by rounding to the nearest hundreds

• 300

• 700

• 1,100

• 1,000

Tracy ordered 325 pet toys and 165 bags of dog food for her new pet store. Which is the best estimate of the total number of items Tracy ordered?

• 400
• 500
• 600
• 700