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WorksheetsOperations with Rational Numbers
Total questions: 9
Worksheet time: 20mins
Each shelf on Sandra's bookcase is 4221 inches long. Each book she will place on a shelf is 43 inch wide. What is the greatest number of books of this size Sandra can fit on one shelf?
57
56
32
31
What is the value of the expression -2(-3 + -1)?
-8
-7
5
8
Ezra and Sophie are planning a picnic for a group of friends.
They have $100 to spend. They will buy one large salad for $28.50. They will also buy some sandwiches for $4.85 each.
Ezra thinks they can buy at least 20 sandwiches, but Sophie thinks they can buy no more than 14 sandwiches. Which estimation strategy will show who is correct?
Each sandwich costs about $5, so 20 sandwiches will cost about $100, so Ezra is right.
Each sandwich costs about $5, so 14 sandwiches will cost about $70, so Sophie is right.
Each sandwich costs about $4, so 20 sandwiches will cost about $80, so Ezra is right.
Each sandwich costs about $4, so 14 sandwiches will cost about $55, so Sophie is right.
Which situation can best be modeled by the expression 10(-4)?
A store has 10 hats. They sell 4 hats. How many hats remain?
A babysitter earns $10 per hour working for 4 hours. How much does the babysitter earn?
A library has 10 computers. Then they buy 4 more computers. How many computers does the library have in all?
A scuba diver swims down 4 feet per minute for 10 minutes. In feet, where is the scuba diver compared to the surface of the water?
Jackson mows 31 of his neighbor's lawn in 61 of an hour. At this rate, how many lawns of the same size could he mow in one hour?
61
21
2
18
Which expressions have a value of -2?
Select all that apply.
-10 + 8
10 + -8
-10 + -8
8 + -10
10 + 8
An expression is shown.
-20.75 + 14.5
What is the value of the expression?
36.25
6.25
-6.25
-35.25
Beth used her calculator to multiply 19 by 0.2, and her answer was 38. What mental check can Beth use to test whether her answer makes sense?
Multiplying 0.2 is the same as multiplying by 5, so her answer should be close to 20 times 5.
Multiplying 0.2 is the same as dividing by 5, so her answer should be close to 20 divided by 5.
Multiplying 0.2 is the same as multiplying by 2, so her answer should be close to 20 times 2.
Multiplying 0.2 is the same as dividing by 2, so her answer should be close to 20 divided by 2.
Cierra is playing a game on a number line. Her game piece is on the number 3. She picks a card that says "move 8 spaces". Select all numbers that are 8 spaces from Cierra's current position.
11
8
-4
-5
-8
