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WorksheetsUnit 4 Review (Add/Sub/Mult/Div. Decimals)
Total questions: 18
Worksheet time: 23mins
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Jessica has a piece of string that is 0.45 ft. long. She wants to add another piece that is 0.26 ft. long. How long would the total length be?
(a)
Describe the error in setting up the following problem
They didn't line the decimals up as they should
They didn't move the decimal straight up as they should
When you move the decimal in the divisor, you must also move it the same number of spaces in the dividend. They did not.
They are supposed to get rid of the decimal. We cannot divide with a decimal.
Ashley picked out a watermelon to buy that weighs about 7.2 pounds. The watermelon is priced at $1.79 per pound. How much is the total cost of the watermelon she has picked out? Do the work to solve! Round the nearest hundredths place for money! $_ _ . _ _
(a)
Jackson was in a hotdog eating contest and ate 119 hotdogs in 3.5 minutes. How many hotdogs did he eat per minute? Round to the nearest whole number. Show your work and circle your answer.
(a)
The Rutledge family drove 387.4 miles to visit relatives. They used 13.8 gallons of gas. How many miles per gallon did the family get on their drive? Round to the nearest hundredths place. ( _ . _ _ )
(a)
Kayden has $17.48. He buys 1 pack of fruit snacks for $0.40 and 2 rice crispy treats for $1.33 each. After he purchases all of his items, how much money does Kayden have left?
(Multistep problem!)
(a)
An electrician has 31.4 meters of wire to use on a job. On the first day, she used 12.643 meters of wire. How many meters of wires does she have left after the first day?
(a)
When adding or subtracting decimals you should...
Line up the decimals
Line up the place value positions
Bring the decimal straight down
Count the number of decimal place value positions and add the decimal at the end.
When multiplying decimals you should...
Line up the decimals
Underline and count the # of decimal place value positions in the factors.
Bring the decimal straight down
Multiply like normal, add the decimal to your answer at the end.
When dividing decimals you should...
Move the decimal to the left in the dividend
Move the decimal to the right in the divisor until it is a whole number
Bring the decimal straight up from the dividend to the quotient
Move the decimal to the right in the dividend, the same amount of times as you did the divisor.
What digit is in the TENTHS place?
12.345
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What digit is in the THOUSANDTHS place?
12.345
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What digit is in the ONES place?
12.345
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What digit is in the HUNDREDTHS place?
12.345
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5
What digit is in the TENS place?
12.345
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5
