Multiplication/division facts
Which number makes this equation true?
4 x ___ = 16
4
Pablo puts photos in his photo album. He puts the photos in 3 rows of 6. How many photos does Pablo put in his photo album altogether?
Draw an array to represent the problem.
Array with 3 rows of 6.
Which expressions are equal to 8 × 5 ?
A. (3 × 5) + (5 × 5)
B. (2 × 5) + (4 × 5)
C. (4 × 5) + (4 × 5)
D. (5 × 5) × (3 × 5)
A. (3 × 5) + (5 × 5)
C. (4 × 5) + (4 × 5)
Draw an array that represents 3 x 4.
Array with 3 rows of 4.
Solve.
7 x 5 =
35
Pablo puts photos in his photo album. He puts the photos in 3 rows of 6 . How many photos does Pablo put in his photo album altogether?
Which equations can be used to solve the problem?
Choose the two correct answers.
A. 6 ÷ 3 =
B. 6 × 3 =
C. 3 × 3 =
D. 6 + 6 + 6 =
E. 3 + 3 + 3 + 3 + 3 =
B. 6 x 3 =
D. 6 + 6 + 6 =
Which expressions are equal to 6 x 3.
Choose 2.
A. 6 + 6 + 6
B. (3 x 3) x (3 x 3)
C. 3 + 3 + 3
D. (3 x 3) + (3 x 3)
A. 6 + 6 + 6
D. (3 x 3) + (3 x 3)
How does an array for 3 x 4 also represent 4 x 3. Explain your thinking.
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There array represents 3 x 4 because there are 3 rows of 4. It also represents 4 x 3 because it has 4 columns of 3. The answer is the same.
Solve.
10 ÷ 2 =
5
Which situations can be represented by 20 ÷ 5 ?
Choose the two correct answers.
A. The total of 20 shells and 5 shells
B. The difference of 20 coins and 5 coins
C. The total number of tickets when 5 children each have 20 tickets
D. The number of groups of toys when 20 toys are put into groups of 5
E. The number of blocks in each group when 5 children share 20 blocks equally
D. The number of groups of toys when 20 toys are put into groups of 5
E. The number of blocks in each group when 5 children share 20 blocks equally
Use the distributive property to solve 9 x 4.
Answers may vary.
( 1 x 4 ) + ( 8 x 4 ) =36
( 2 x 4 ) + ( 7 x 4 ) =36
( 3 x 4 ) + ( 6 x 4 ) =36
( 4 x 4 ) + ( 5 x 4 ) =36
Fill in the blanks to find 8 × 4 . Use the array to help.
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8 x 4 = ( 5 x 4 ) + ( __ x 4 )
= 20 + ___
= ____
8 x 4 = ( 5 x 4 ) + ( 3 x 4 )
= 20 + 12
= 32
Solve.
12 ÷ 4 =
3
Oka needs a total of 36 juice boxes for her class party. The juice boxes are sold in packs of 4 .
How many packs of juice boxes does Oka need to buy?
Oka needs to buy 8 packs of juice boxes.
Adam packs 27 limes into some bags. Each bag has 3 limes in it.
A. How many bags of limes does Adam pack?
B. Adam sells 5 of the bags. How many bags are left?
A. Adam packs 9 bags of limes 27 ÷ 3 = 9
B. 4 bags are left. 9 - 5 = 4
Draw an array to solve.
40 apple trees are planted in rows. There are 5 trees in each row. how many rows are there?
o o o o o
o o o o o There are 8 rows of trees.
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Solve.
8 x 3 =
24
Oka uses the equation 4 × ___ = 36 to find how many packs of juice boxes she needs to buy.
Is Oka using a correct equation? Explain.
Yes. If you count by 4's to 36, she counts 8 times.
4 x 8 = 36
4, 8, 12, 16, 20, 24, 28, 32
Carla buys 4 books and 3 cards. Each book costs $8. Each card costs $4.
A. What is the total cost of the books?
B. How much does Carla spend altogether?
A. The total cost of the books is $32. 4 x 8 = 32
B. Carla spends $44 altogether. 32 + 12 = 44
7 students share 28 markers equally. Draw a tape diagram to find how many markers each student gets.
Each student gets 4 markers.