5. Evaluate the expression. 5.51 + 6.27
11.78
Which word means a number close to the exact amount or to round a number? a) addend b) sum c) estimate d) difference
estimate
How much is 4 twenty dollar bills?
$80
7b. Derrick picked 3.9 pounds of apples, Kylah picked 3.67 pounds of apples, and Jayda picked 3.52 pounds of apples. Write an equation to show how you will find the difference for the top two apple pickers.
3.9 - 3.67 = x
Which word means the result of addition? a) addend b) sum c) estimate d) difference
sum
7c. Ivan picked 2.5 pounds of apples, Amerie picked 3.2 pounds of apples, and Jameishka picked 5.28 pounds of apples. What is the difference between the amounts of the top two apple pickers?
5.28-3.2=2.08
What should you do before adding when you are asked to ESTIMATE THE SUM?
round the number
Which word means any number being added? a) addend b) sum c) estimate d) difference
addend
1a. Honesty has three pencils that have a length of 5.25 centimeters, 7.34 centimeters and 9.89 centimeters. What is the measurement of each pencil rounded to the nearest tenth?
5.3 and 7.3 and 9.9
What is the result of subtraction called? a) addend b) sum c) estimate d) difference
difference
2. What is the estimated sum of 3.24 and 8.52?
3+9=12
1b. What is the sum? 5.3 + 7.3 + 9.9
22.5
3. Which decimal makes this equation true? 46.75 + __________ = 68.94
22.19
Ms. Roll picked 5.5 pounds of apples, Mrs. Alas picked 3.6 pounds of apples, and Mrs. Frenchek picked, 4.28 pounds of apples. Which two people sold the most apples?
Mrs. Frenchek and Ms. Roll
How much is 4 twenty dollar bills?
$80
Which decimal makes this equation true? 5.26 + ______ = 13.63
8.37
Denzel bought three kayaks. The first kayak is 5.34 feet long, the second one is 4.83 feet long, and the third one is 6.24 feet long. How much longer is the third kayak than the first kayak?
6.24-5.34=0.9 The third kayak is 0.9 feet longer than the first.
4. Samantha spent $1.29 on a pen and $0.37 on an eraser at the school store. What was the total amount she spent? Use the model to help you.
$1.66
How much is 4 twenty dollar bills?
$80
How much is 4 twenty dollar bills?
$80
What is the definition of difference?
The answer to a subtraction problem.
What is the definition of sum?
The answer to an addition problem.