Adding Fractions and Mixed Numbers
Subtracting Fractions and Mixed Numbers
Properties
Estimating Fractions
Mystery Questions
100
Ms. Rosenbusch's cat weighed 17 3/4 pounds last year. He gained 1 2/3 pounds this year. How much does he weigh now?
What is 19 5/12
100
Nina bought 3/4 yards of ribbon. She used 1/6 of the ribbon to decorate ornaments. How much ribbon does she have left?
What is 14/24 = 7/12
100
Keneth cut three pieces of wood for his toy boat. He wrote the following expression to show the total length in feet of wood: (9 1/8 + 7 2/5) + 14 7/11 Which shows another way to write the expression using the Associative Property of Addition?
What is 9 1/8 + (7 2/5 + 14 7/11)
100
Krystal sewed for 1 1/3 hours in the morning and 7/9 of an hour after dinner. Which is the best estimate of the time she sewed?
What is about 2 hours
100
Elijah biked 4/10 of a mile and then 5/8 more. Which pair of fractions can he use to find how far he went in all? a) 4/80 and 5/80 b) 16/40 and 25/40 c) 4/18 and 5/18 d) 16/40 and 20/40
What is b; 16/40 and 25/40
200
Kiersten uses 1 1/2 cup flour to make 2 dozen Christmas cookies. 3 cups of flour for 4 dozen cookies, and 4 1/2 cups of flour for 6 dozen cookies. If Kiersten uses the same recipe, how many cups of flour will she use to make 8 dozen cookies?
What is 6 cups of flour
200
Mr. Rosa uses 5/7 yard of wire to put up his big screen TV. He uses 1/3 yard of wire to fix a switch. How much more wire does he use to put up the TV that to fix the switch?
What is 8/21
200
The Econ Trail has three sections that are 3 1/2 miles, 4 1/4 miles, and 6 3/4 miles long. The expression was written this way: (4 1/4 + 3 1/2) + 6 3/4 What is another way to write this expression using only the Cummutative Property of Addition?
What is (4 1/4 + 6 3/4) + 3 1/2
200
The Hunter family hiked 1 5/8 of a mile in Gainesville on Monday, and on Tuesday they hiked another 6/8 of a mile. Use benchmarks to estimate about how far they hiked altogether.
What is 3 miles, how do you know?
200
Malaika wants to find the total of 3/8 cup of chocolate chips and 7/9 cup of walnuts. What is the least common denominator of the fractions?
What is 72
300
4 2/5 + 10 2/8
What is 14 13/20
300
11 1/4 - (5 3/4 + 1 3/8)
What is 4 1/8
300
What property would you use to solve this equation: 1 1/2 + (3 1/2 + 6 1/8)
What is Associative Property of Addition
300
What benchmark numbers would be used to estimate the sum of these fractions: 2/3 + 4/6
What is 1 + 1/2, why?
300
Antonell ran each day for a week. The first day she ran 1/7 mile, the second day she ran 3/7 mile, and 5/7 mile the third day. How much did she increase the distance she ran each day?
What is 2/7 of a mile
400
18 1/2 + 16 3/5
What is 35 1/10
400
Damon is painting his bedroom walls. He has 5 1/3 gallons of paint. On the longest wall he uses 1 3/8 gallons of paint. How much paint does he have left?
What is 3 23/24
400
Tell which property you would use to solve this equation: (5 1/8 + 3 3/4) + 4 7/8
What is Commutative Property of Addition
400
Ms. Eddy drove 78 1/3 miles on Monday, 77 1/12 miles on Tuesday, and 75 5/6 miles on Wednesday. If she continues this pattern on Thursday and Friday, how many miles will she drive on Friday?
What is 1 1/4 is the difference, so subtract 1 1/4 from Wednesday to get Thursday - 74 7/12; Friday - 73 1/3
500
10 1/2 + 28 6/10
What is 39 1/10
500
Dylan caught 3 frogs that had a total length of 6 2/5 inches. One frog is 1 3/8 inches and the second is 3 1/2 inches long. How long is the last frog?
What is 1 21/40
500
Explain the difference between Associative Property of Addition and Commutative Property of Addition.
What is Associative just moves the parentheses or just switches the position of numbers, where Commutative rearranges the numbers in and out of parentheses.
500
Use benchmark numbers to estimate the sum: 3 3/4 + 4 1/5
What is 8, explain
500
E.J. has 4 3/4 pounds of clay. He uses 1 1/10 pounds to make a cup, and another 2 pounds to make a jar. How many pounds are left?
What is 1 13/20
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