Answer Key
Name:
Counting Up by 2, 5 and 10
Solve each problem.
A n s w e r s
1) A thick book had 60 pages. A thin book had 10 pages. If
you read the thick book and three thin books how many
90
1.
pages total would you have read?
70
2.
2) A large container could hold 50 cups of liquid. If you also
had two smaller containers that could hold 10 cups each.
28
3.
How many cups total can all the containers hold?
80
4.
3) A big box weighed 20 kilograms. A small box weighed 2
kilograms. If you had one big box and four small boxes
100
5.
how much would they weigh all together?
20
6.
4) A gummi worm was 30 calories. A gummi bear was 10
calories. If you ate one gummi worm and five gummi bears
65
7.
how many calories would you have eaten?
65
8.
5) Gwen bought a new book. She read 40 pages on the first
night. Then she read six more nights, reading 10 pages each
60
9.
night. How many pages did she read total?
22
10.
6) Mike downloaded a file that was 12 megabytes. He also
downloaded four smaller files that were 2 megabytes each.
How many megabytes total were the files he downloaded?
7) A builder used 50 nails to make a desk. Then he built three
birdhouses, with each birdhouse using 5 nails. How many
nails did he use total?
8) Oliver had 45 pieces of candy. Later four of his friends
gave him 5 pieces each. How many pieces did he end up
with?
9) At the arcade Emily earned 50 tickets playing Skee Ball.
Then she played 'Whack-A-Mole' two times and won 5
tickets each time. How many tickets did she win all
together?
10) A large gym bag had 10 tennis balls in it. There were also
six smaller bags with each one having 2 tennis balls in it.
How many tennis balls were there total?
1-10 90 80 70 60 50 40 30 20 10 0
Math
10