Unit 4 Review

Which is the following is the correct way to find

24.64 + 13.82?

Choose all that apply.

• 2+1+4+3+6+8+4+2

• 20+10+4+3+0.6+0.8+0.04+0.02

• 24+12+0.64+0.82

• 2+1+4+3+0.6+0.8+0.04+0.02

The average temperature in July is 87.4 degrees. The average low temperature in July is 64.8 degrees. Which equation best estimates the difference between the average high and the low temperatures?

• 87-65=22

• 88-64=24

• 88-65=23

• 87-64=23

What equation is shown by the decimal grid?

• 13+14= 27

• 0.13+0.14= 0.27

• 0.20+0.07= 0.27

• 1.3+1.4= 2.7

Which equation is shown by the decimal grid?

• 0.28-0.05= 0.23

• 28-5= 23

• 0.23-0.5= 0.18

• 2.7-0.5= 2.2

What is the difference?

0.8 - 0.11=

• 0.03

• 0.69

• 0.5

• 0.91

What is the sum?

0.6 + 0.3 =

• 0.9

• 0.09

• 0.63

• 6.3

Sam decided to practice for a bike-a-thon. He biked the first day 2.83 miles. The second day he biked 1.18 miles. About how many miles did Sam bike both days?

• About 5 miles

• About 4 miles

• About 4.1 miles

• About 3.91 miles

Leslie makes 2.7 liters of lemonade. After giving lemonade to her friends, she has 0.19 liters let. How many liters of lemonade did Leslie serve to her friends?

• 2.51 liters

• 2.51

• 2.69 liters

• 1.88 liters

Which equation is shown by the decimal grid?

• 0.46 + 0.16 = 0.62

• 4.6 + 1.6 = 6.2

• 0.6 + 0.2 = 0.8

• 0.046 + 0.016 = 0.062

What is the difference?

0. 0.8 - 0.13

• 0.67

• 0.73

• 0.5

• 0.66