Comparison Problems
Nando has 4 goldfish. Jill has 3 goldfish. Cooper has 2 times as many goldfish as Nando and Jill combined. How many goldfish does Cooper have?
14 goldfish
63x7
441
18x5
90
A tree farm has 9 rows of 39 spruce trees. In each row, 15 of the spruce trees are blue spruce. How many spruce trees are NOT blue spruce?
198 trees
Estimate:
46x4
50x4= 200
There are 8 students in the art club. There are 3 times as many students in chorus. How many students are in chorus?
24 students
8x(30+5)
280
34x9
306
Jonah and his friends go apple picking. Jonah fills 5 baskets. Each basket holds 15 apples. If 4 of Jonah's friends pick the same amount as Jonah, how many apples do Jonah AND his friends have all together?
375 apples
Estimate:
678x7
700x7=4900
There are 27 campers. This is 9 times as many as the number of counselors. How many counselors are there?
3 counselors
(6x70)+(6x4)
444
532x6
3,192
A jewler has 38 inches of silver chain. She needs 4 times that much to make necklaces and 5 times that much to make bracelets. How much silver chain will she need to make bracelets and necklaces?
342 inches
What property is this:
23x7=7x23
Communative
There are 5 times as many yellow labs as terriers in the dog park. If there are total of 18 dogs, how many dogs are terriers?
3 terriers
562x8
4,496
7,145x3
21,435
Sam walks his dog 4 times a day. Each time he walks his dog he walks 2,435 yards. How many yards does he walk in 2 days?
19,480 yards
4x56x25
5,600
In Sean's fishtank there are 6 times as many goldfish as guppies. There are a total of 21 fish in the tank. How many more goldfish are there than guppies?
15 more goldfish
8,125x9
73,125
96,541x9
868,869
A hotel has 159 rooms on each floor. There are 6 floors. If 312 of the rooms in the hotel have been cleaned, how many rooms still need to be cleaned?
642 rooms
3x31x10
930