1
3 × 9 + 7
34
True or False?
You multiply the base times the exponent.
False. You multiply the base times the base the same number of times as the exponent.
5 2 − 8
17
Marian baked oatmeal cookies for her classmates. If she can place 12 cookies on a tray at a time, how many trays will she need to prepare 276 oatmeal cookies at a time?
276 ÷ 12 = 23 She will need 23 trays.
Anna made 33 blueberry cookies. If she shares this equally among her four friends, how many will each receive? Will there be any cookies leftover?
33 ÷ 4 = 8 remainder 1 Each of Anna’s four friends will receive 8 blueberry cookies. There is one cookie leftover.
12 + 36 ÷ 4
21
8 × 18 ÷ 4 + 15
51
2 3 × 3 2
72
Linda's friends were coming over that afternoon, so she made 480 bite-sized pretzels. If one serving is equal to 12 pretzels, how many servings of bite-sized pretzels was Linda able to prepare?
480 ÷ 12 = 40 Marian was able to prepare 40 servings of bite-sized pretzels.
Cristina baked 17 croissants. If she planned to serve this equally to her seven guests and eat any leftovers herself. How many croissants will Cristina’s guests receive?
17 ÷ 7 = 2 remainder 3 Each guest will have 2 croissants.
9 ÷ 3 + 4 × 6
27
(67 − 18) ÷ 7 × 3
21
4 2 × (8 − 3)
80
Bruce’s mother collected all family pictures and wanted to place all of them in an album. If an album can contain 20 pictures, how many albums will his mother need if there are 480 pictures?
80 ÷ 20 = 24 She will need 24 albums.
Allen read about the solar system. He read 10 pages a day of a book which has 120 pages. How many days did it take Allen to finish reading the book?
120 ÷ 10 = 12 It took Allen 12 days to finish reading the book.
Rewrite the following expression as an exponents.
3 × 3
32
8 2 ÷ (9 − 5)
16
(7 × 8 − 4) ÷ (6 − 2)
13
Two brothers had 119 toy cars wrapped in colorful shiny wrappers. If they are to distribute the toy cars equally to the 9 houses in the first block, how may toy cars will each house receive?
119 ÷ 9 = 13 remainder 2 Each house will receive 13 colorful toy cars.
Charles was curious about Greek mythology, so he read 8 pages a day of a 99-page book entitled “Greek Mythology: Fast Facts”. How many days did it take Charles to finish the book? How many pages did he read on the last day?
99 ÷ 8 = 12 remainder 3 It took Charles 13 days to finish the book; he read 3 pages on the last day.
100 ÷ 5 × 3 − 46
14
2 × 11 − 12 ÷ 2
16
14 × 3 + 28 ÷ 7
46
Friends gathered paper to create some star-shaped paper ornaments. If each star requires 20 pieces of paper and they had 680 pieces of paper, how many stars were they able to make? Was there any paper left over?
680 ÷ 20 = 34 They were able to make 34 stars. There was no paper leftover
Lex read a 43-page book about music and the most popular 12 instruments. If he read only 3 pages a day, how many days will it take Lex to finish reading the book? How many pages did he read on the last day?
43 ÷ 3 = 14 remainder 1 It will take Lex 15 days to finish the book. He only read one page on the last day