Money
Multiply/Divide by 10, 100, 1000
Estimating Products
Multi Step Problems
Unknown Numbers
100
Eric bought a piece of gum for $0.38. He gave the clerk a $1 bill. How much change should he receive?
A. 1 quarter, 1 dime, and 2 pennies
B. 2 quarters, 1 dime, and 2 pennies
C. 2 quarters, 1 dime, and 1 penny
D. 2 quarters, 1 dime, and 3 pennies
B. 2 quarters, 1 dime, and 2 pennies
100
Solve the following. 10 x 10 = A.100 B.10 C.1,000 D.10,000
A. 100
100
Estimate the product.
97 × 34 = ?
A. between 4,000 and 5,500
B. between 5,500 and 7,200
C. between 2,700 and 4,000
D. between 1,600 and 2,700
C. between 2,700 and 4,000
100
At the beginning of the year, Mrs. Wilkinson's class had 18 packages of colored paper. So far, the class has used 513 pieces of colored paper. If each package of colored paper contained 75 pieces, how many pieces of colored paper does the class have left?
A. 420
B. 606
C. 837
D. 1,863
C.
837
18 packages × 75 pieces of paper per package = 1,350 pieces of paper
Then, subtract the number of pieces of paper the class has used.
1,350 pieces of paper - 513 pieces of paper = 837 pieces of paper
100
What value of z makes this equation true?
A. 67
B. 51
C. 52
D. 66
B. 51
Compare the numbers on each side of the equation to find the value of z.
First, find the difference between the second number on each side.
Since 39 is 8 greater than 31, z must be 8 less than the first number on the right side, 59.
So, the value of z that makes the equation true is 51.
200
Oliver bought a carton of juice for $5. He gave the clerk a $20 bill. How much change did he receive?
A. 
B.
C.
D.
A.
200
Solve the following.
A. 2.8
B. 2,800
C. 28,000
D. 280
D.
280
200
Estimate the product.
A. between 6,000 and 9,000
B. between 0 and 5,000
C. between 15,000 and 20,000
D. between 10,000 and 14,000
B. between 0 and 5,000
200
Freddy bought 3 bags of pebbles to put in his fish tank. Each bag contains 211 pebbles. After he put the right amount of pebbles in his fish tank, he had 100 pebbles left over. How many pebbles did he put in his fish tank?
A. 533
B. 733
C. 108
D. 314
A.
533
3 bags × 211 pebbles per bag = 633 pebbles
Then, subtract the amount of pebbles he had left over.
633 pebbles - 100 pebbles = 533 pebbles
200
What value of j makes this equation true?
A. 7
B. 15
C. 6
D. 14
D. 14
Compare the numbers on each side of the equation to find the value of j.
First, find the difference between the first number on each side.
Since 68 is 4 less than 72, j must be 4 greater than the second number on the left side, 10.
So, the value of j that makes the equation true is 14.
300
Lisa bought a journal for $15. She gave the clerk a $20 bill. How much change did she receive?
A. one $10 bill and two $5 bills
B. two $5 bills
C. one $10 bill and one $5 bill
D. one $5 bill
D.
one $5 bill
300
Calculate the following:
5,300 ÷ 10 = ____
A. 530
B. 53
C. 53,000
D. 5,300
A.
530
300
Estimate the product.
47 × 59 = ?
A. between 4,200 and 5,600
B. between 1,200 and 2,000
C. between 2,000 and 3,000
D. between 3,000 and 4,200
C.
between 2,000 and 3,000
300
Lance is 3 inches shorter than Justin. Bill is 7 inches taller than Lance. If Justin is 69 inches tall, how tall is Bill?
A. 79 in
B. 73 in
C. 83 in
D. 76 in
B. 73 in
To calculate Lance's height, subtract 3 inches from Justin's height of 69 inches.
69 - 3 = 66
To calculate Bill's height add 7 inches to Lance's height.
66 + 7 = 73
So, Bill is 73 in tall.300
What value of n makes this inequality true?
A. 13
B. 9
C. 8
D. 17
D. 17
Compare the numbers on each side of the inequality to find the value of n.
First, find the difference between the second number on each side.
Since 6 is 3 more than 3, n must be less than 3 more than the first number on the right side, 16.
To make the inequality true, the value of n must be more than 13.
So, the value of n that makes the inequality true is 17.
400
Roy bought a candy bar for $0.82 and gave the clerk a one dollar bill. How much change should he get back?
A. 
B. 
C.
D.
C.
400
Calculate the following:
3,000 ÷ 100 = ____
A. 3
B. 3,000
C. 30
D. 300,000
C.
30
400
Toby is creating playlists on his computer. If one playlist contains 76 minutes of music, which is the best estimate of the number of minutes contained in 44 playlists?
A. 120
B. 3,600
C. 3,300
D. 3,200
D.
3,200
Round 76 to 80. Round 44 to 40. Now, the problem becomes 80 × 40
400
Mrs. Jones loves shoes. She has 26 pairs of old shoes. She went to the store and bought 13 new pairs of shoes. Then, she threw away 15 pairs of her old shoes. How many pairs of shoes does Mrs. Jones have now?
A. 39
B. 24
C. 9
D. 26
B. 24
o calculate how many pairs of shoes Mrs. Jones has, take the shoes she started with, add the new shoes she bought, and then subtract the shoes she threw away.
26 + 13 - 15 = 24
So, Mrs. Jones has 24 pairs of shoes.
400
Fill in the blank with the correct number to make this inequality true.
A. 11
B. 9
C. 7
D. 8
A. 11
First, solve the side in which both factors are known. Multiply the left side of the inequality.
The value on the left side of the inequality is 36.
For the inequality to be true, the value on the right side should be greater than 36.
Of the given options, the only number that makes the inequality true is 11.
500
Sally bought a pencil for $0.53 and gave the clerk a 1 dollar bill. How much change should she get back?
A. 2 quarters, 2 dimes, and 2 pennies
B. 1 quarter, 2 dimes, and 2 pennies
C. 1 quarter, 2 dimes, and 3 pennies
D. 1 quarter, 1 dime, and 2 pennies
B.
1 quarter, 2 dimes, and 2 pennies
500
Find the quotient.
A. 320
B. 32
C. 3,200
D. 32,000
B.
32
500
Gerald has 27 bags of coins in his coin collection. Each bag contains 61 coins. Which is the best estimate of the number of coins that Gerald has in his coin collection?
A. Between 1,375 and 2,275
B. Between 2,275 and 3,375
C. Between 4,675 and 6,175
D. Between 675 and 1,375
A.
Between 1,375 and 2,275
Work the problem by rounding to the nearest 10.
27 × 61 is approximately equal to 30 × 60 = 1,800.
500
Haley has five times as many stuffed animals as she does dolls. Her brother has 15 more video games than Haley has stuffed animals. If Haley has 11 dolls, how many video games does her brother have?
A. 31
B. 26
C. 170
D. 70
D. 70
First, find the amount of stuffed animals Haley has.
5 times as many stuffed animals as dolls = 11 × 5 = 55 stuffed animals
Since her brother has 15 more video games than she has stuffed animals, add the two numbers.
55 + 15 = 70 video games
500
Find the unknown number that makes the equation true.
A. 125
B. 175
C. 875
D. 7
D. 7
First, multiply the left side of the number sentence.
The product on the left side is 175.
For the equation to be true, the right side of the number sentence must also equal 175.
Find the unknown number which, when multiplied by 25, equals 175.
So, the unknown number is 7.
