Estimating Sums and Differences with Decimals

What is the main objective of this lesson?

• Learning to add fractions

• Learning to divide decimals

• Learning to round decimals and estimate sums and differences

• Learning to multiply decimals

Tags

CCSS.5.NBT.B.7

If you round 5.6 to the nearest whole number, what do you get?

• 5

• 7

• 6

• 5.5

Tags

CCSS.5.NBT.A.4

What is the estimated sum of 5.6 and 3.2 when rounded to the nearest whole number?

• 7

• 9

• 8

• 10

When rounding 15.30 to the nearest whole number, what is the result?

• 15

• 16

• 14

• 15.5

Tags

CCSS.5.NBT.A.4

What is the estimated difference between 15.30 and 8.92 when rounded to the nearest whole number?

• 8

• 5

• 6

• 7

If you round 21.97 to the nearest tens place, what do you get?

• 30

• 20

• 25

• 22

Tags

CCSS.5.NBT.A.4

What is the estimated sum of 21.97 and 58.1 when rounded to the nearest tens place?

• 90

• 100

• 80

• 70

When rounding 58.1 to the nearest tens place, what is the result?

• 50

• 60

• 58

• 55

Tags

CCSS.5.NBT.A.4

Why is it important to practice rounding and estimation?

• To understand fractions better

• To learn new mathematical concepts

• To make quick and reasonable calculations in real-life situations

• To improve multiplication skills

Tags

CCSS.4.NBT.B.5

What should you do if you find rounding tricky?

• Practice more and watch additional videos

• Ask someone else to do it

• Ignore it

• Skip the topic

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3