Multiplication
2 x 1 =
2
4 / 2 =
2
2 x A =4
A = 2
Aunt Korina and her 3 friends decide to share a cab to go to the mall. If they each spent $6, how much did the cab ride cost altogether? Write an equation using a question mark or an empty box to represent the unknown. Solve.
4 x 6 = ?
? = 24
9 x 6 =
54
3 x 3 =
9
100 / 10 =
10
B x 6 = 12
B = 2
Aunt Korina’s 3 friends each order pasta and a lemonade for lunch. Aunt Korina orders only chicken salad.
Use the menu to find how much they spend altogether.
Lunch Menu: Pasta $7 Chicken Salad $9 Lemonade $2
3 x 7 = 21
3 x 2 = 6
1 x 9 = 9
21 + 6 + 9 = 36
49 / 7 =
7
5 x 3 =
15
30 / 10 =
3
10 x C = 100
C = 10
Original Price Sale Price
$12 $4
$21 $7
$27 $9
$3 $1
$24 ?
Dividing by 3
? = 8
8 X D = 56
D = 7
6 x 4 =
24
54 / 9 =
6
D X 9 = 63
D = 7
Riley buys a shirt that costs $28 and pants that cost 3 times as much. How much did Riley spend in all?
28 x 3 = 84
84 + 28 = 112
A baker packs 6 cookies into 1 box. How many cookies are in 57 boxes?
F. 72
G. 342
H. 348
J. 3,042
G. 342
8 x 6 =
48
40 / 8 =
5
9 X E = 81
E = 9
. Mrs. Ling’s class collects 15 pounds of cans for a recycling project. The expression shown represents the number of pounds of cans Mrs. Bailey’s class collected.
3 × 15
Which statement is true?
A. Mrs. Ling’s class collects 3 times as many pounds of cans as Mrs. Bailey’s class.
B. Mrs. Bailey’s class collects 3 times as many pounds of cans as Mrs. Ling’s class.
C. Mrs. Bailey’s class collects 3 more pounds of cans than Mrs. Ling’s class.
D. Mrs. Ling’s class collects 3 more pounds of cans than Mrs. Bailey’s class.
B. Mrs. Bailey’s class collects 3 times as many pounds of cans as Mrs. Ling’s class.
Aunt Korina mentally checks the total using 4 × $9. Explain her strategy. Use your answer from number 2.a to explain.
We combined the answers from the pasta (21) with the cost of the lemonade (6) to get 27 which is the same as 3 (the amount of friends) x 9 (the original cost of the pasta ($7) and the lemonade ($2). We then added another 9 from the chicken salad because Aunt Korina was the only one to order that item.