Estimating II - Tips / Other Values

When you see the words "estimate" or "about" in a word problem, what do you have to do?

• regroup

• round

Tags

CCSS.5.NBT.A.4

CCSS.5.NF.A.2

What is 10% of 160

• 16

• 150

• 1.6

• 1600

Tags

CCSS.5.NBT.B.7

CCSS.5.NF.B.4

CCSS.5.NF.B.5

CCSS.5.NF.B.6

What is 20% of 160

• 1600

• 24

• 16

• 32

Tags

CCSS.5.NF.B.4

CCSS.5.NF.B.5

CCSS.5.NF.B.6

What is 10% of 200

• 200

• 2

• 10

• 20

What is 20% of 200

• 4

• 40

• 8

• 80

Choose the best estimate for 50% of 29.85.

• 3
• 12
• 15

Bill:  $25
Percentage of tip:  20%
Tip????

• $6.00
• $5.00
• $2.50
• $4.00

Tags

CCSS.7.NS.A.2

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Bill: $39.88

Percentage of Tip: ABOUT 10%

Closest Tip?????

• $4.00

• $5.00

• $5.50

• $6.00

If I have 58 gummy bears, and then I eat 20 --- ABOUT how many gummy bears do I have left?

• 38 gummy bears

• 40 gummy bears

• I don't know because I am sure you ate more than 20.

• 80 gummy bears

Tags

CCSS.5.NBT.B.7

Without using a calculator, find a 10% tip for a bill that is $51.96. Choose the best option:

• $52.06

• $1.96

• $6.00

• $5.20