2_Numbers_Amit

Which difference is about 10?

• 33.2 – 28.4

• 70.9 – 58.7

• 42.5 – 16.8

• 65.7 – 65.6

Estimate the difference.

98 - 5.7 =

• 92
• 93

• 91

• 94

Lina buys a hamburger for $2.96 and a milkshake for $4.06. She pays with a $20 bill. What is a reasonable estimate for how much change she should get back?

• 13

• 12

• 14

• 7

Estimate the following sum by first rounding each decimal to the nearest hundred.

428.1 + 186.5 + 210.62

• 800
• 900

• 810

• 780

Round each decimal to the nearest one.  Then subtract.
42.01 - 5.92 =

• 37
• 36
• 33
• 48

What will the answer be if you estimate to the nearest whole number?
$10.10 - $3.69 

• $7
• $6.40
• $14
• $6

Which is the best estimate?

9.6 - 6.2 (Round to the nearest whole)

• 16

• 15

• 4

• 3

True or false:

An estimation is an exact answer.

• True

• False

Which of the following is true?

• 1.72 rounded to the nearest tenth is 1.7
• 2.62 rounded to the nearest tenth is 2.7
• 3.41 rounded to the nearest whole number is 4
• 10.231 rounded to the nearest hundredth is 10.22

Lillie's mom fills her car with 14.297 gallons of gas. What is this amount of gas rounded to the nearest whole number?

• 14

• 15

• 14.3

• 14.2