Multiplication Comparisons
Comparison Problems
Multiplying with 10s, 100s and 1000s
Estimating Products
Multiplying Using Expanded Form
100
Write this as an equation and draw a model: 5 times as many as 7 is 35
5 x 7 = 35
100
Frank and Tony caught a total of 28 fish on their fishing trip. Frank caught 24 fish. This is 6 times as many fish than Tony caught. How many fish did Tony catch?
4 fish
100
5 x 300
1500
100
Estimate this answer: 6 x 478
3,000
100
Write this number in expanded form: 403,680
400,000 + 3,000 + 600 + 80
200
Write this as an equation and draw a model: 48 is 6 times as many as 8
48 = 6 x 8
200
James and Tony took a math test. James correctly answered twice as many problems as Tony. If they both answered a total of 45 questions, how many many questions did Tony answer?
15 questions
200
8 x 500
4,000
200
Find two numbers that the exact answer is between: 4 x 729
2800 and 3200
200
Create an array and solve the problem: 3 x 567
1,701
300
A red umbrella costs $8.00. A green umbrella costs 3 times as much as the red umbrella. How much does the green umbrella cost?
$24.00
300
There are a total of 25 tigers and monkeys at the zoo. There are 4 times as any monkeys as tigers. How many monkeys are there?
20 monkeys
300
70 x 700
49,000
300
Mrs. Hense sells a roll of coastal Bermuda horse hay for $58. She says that she will make $174 if she sells 3 rolls. Is her answer reasonable?
Yes, it is close to 180
300
Use expanded form to help you solve the problem: 6 x 3,283
6,566
400
Sue picked 30 apples. She picked 5 times as many apples as Bob. How many apples did Bob pick?
6 apples
400
You read 5 times as long this week than you read last week. If you read for a total of 132 minutes for both week, how many minutes did you read last week?
22 minutes
400
200 x 5000
1,000,000
400
Mr. Brown sells horse supplies. A pair of riding gloves sells for $16. He says he will make $144 if he sells 9 pairs. Is his answer reasonable?
Yes. It is between the estimates of $90 and $180
400
Use expanded form to help you solve the problem: 4 x 2,924
11,696
500
This month Jane saved 6 times as much money as she did last month. If she saved $42 this month, how much did she save last month?
$7
500
Henry and Janet picked a total of 36 oranges. Janet picked 5 times as many oranges as Henry. How many more oranges did Janet pick?
24 oranges
500
Maria is 20 dozen cookies at a bake sale. How many cookies is she selling?
240 cookies
500
A walking path for horses is 94 feet long. Carlos says that if a horse walks the length of the path 3 times, it will have walked 500 feet. Is his answer reasonable?
No. His answer is not between the estimates of 270 and 300
500
Create an array and use expanded form to solve the problem: 9 x 23,597
212,373
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