Multiplication Basics
What is 6×1?
6
What is 8 x 0?
0
Derek cuts 7 pieces of wire. Each piece is 9 meters long. What is the total length of the 7 pieces? Show a tape diagram, multiplication, and words explaining how you solved it
7 x 9 = 63 meters
Complete the skip-count sequence: 9,___,___,___,___,___,___,___,81.
18, 27, 36, 45, 54, 63, 72
What is 3 x 30?
90
What is 5 x 0? Draw a picture to show the answer
0
Mrs. Parson gave each grandchild $9 and gave a total of $36. How many grandchildren does she have? Draw a tape diagram and write the equation to explain your answer.
36÷9=4
4 grandchildren
Use your skip counting to find 9×7
63
Solve for 10 x 2 x 6
120
Fill in the blank: ____ tens = 4 tens ×2. Show your thinking (words, numbers, picture).
8 tens
The video store sells comedy and sports movies for $5 each. How much money does the video store make if it sells 33 comedy movies and 57 sports movies? Show a number sentence, a drawing or grouping strategy, and your answer.
33 comedy movies + 57 sports movies = 90 movies altogether
90 x $5 = $450.
Use your skip counting to solve 72 ÷9.
8
Use the distributive property to show how 3 x 30 = 9 x 10
3 x (10 x 3) = (3 x 3) x 10 = 9 x 10 = 90
Fill in the blank: 5 tens×5= ____ tens. Explain how you know.
25 tens or 250
Ms. Lemus buys 7 boxes of snacks. Each box has 12 fruit snack packets and 18 cashew packets. How many snack packets does she buy altogether? Show a tape diagram or array and write the equation you use to solve.
Ms. Lemus: 12 + 18 = 30 packets per box→
7×30=210 packets
Explain how knowing 9×5 and 9×2 can help you find 9×7
9 x 5 = 45
9 x 2 = 18
5 + 2 = 7 18 + 45 = 63
one box has 12+18=30 packets, for 7 boxes equation 7×30=210
How can we use our understanding of multiplication by 10 to show 5 x 30?
5 x 30 = 5 x 3 tens = 15 tens = 150
Frederick buys a can of 3 tennis balls. The empty can weighs 20 grams, and each tennis ball weighs 60 grams. What is the total weight of the can with 3 tennis balls? Show number sentence(s), a drawing, and words to explain.
Frederick: can 20 g + 3×60=180 → total 20+180=200 grams
Travis writes 72=9×8. Is he correct? Explain at least two different strategies Travis can use to check his work (use words, drawings, or number sentences).
Use the finger method
7 + 2 = 9
Skip Counting
Find 9 x 10 = 90 then subtract 9 x 2 = 18 (90 -18=72)
Break up 8 or 9
8 x 10 = 80 - (1 x 8=8) = 80-8 = 72