Multiplication
Complete the multiplication method to describe this picture.
* * ** ** **
(Number of groups) x (Number in each group) =
4 x 2 = 8
a) 12 divided by 3 =
b) 16 divided by 4 =
a) 4
b) 4
What two equations match this array?
x x x x
x x x x
x x x x
x x x x
x x x x
x x x x
x x x x
4 x 7
7 x 4
What number makes both equations true?
28 / 4 =
__ x 4 = 28
7
Fill in the blanks.
8 x 4 = (5 x 4) + ( ___ x 4)
= 20 + ____
= _____
3 x 4
12
32
Liz has 5 rows of 3 shells.
a) Draw an array to represent Liz's shells.
b) Complete the equation to describe how many shells she has.
(Number of rows) x (Number in each row) =
x x x
x x x
x x x
x x x
x x x
5 x 3 = 15
Baby Yoda divides 24 light sabers equally among 6 young apprentices. He wants to know how many light sabers each apprentice will receive.
a) Write a division equation that represents the word problem.
b) How many light sabers will each apprentice receive.
a) 24 / 6 = 4
b) 4 light sabers
Fill in the blanks.
7 x 2 = ___ x 7
4 x 9 = 9 x ___
2
4
Which number makes the situation true?
3 x ___ = 27
9
Which two situations represents 20 / 5?
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 students each have 20 tickets.
d) The number 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
e
How many crayons does Luna have altogether?
28 crayons
Elle arranges 18 robots into 3 equal rows.
a) Draw an array to represent the robots.
b) Complete a division equation to represent the number of robots in each row.
a) x x x x x x
x x x x x x
x x x x x x
b) 18 / 3 = 6 robots in each row
Multiply.
9 x 2 = ___
4 x 7 = ___
5 x 6 = ___
18
28
30
Dustin has 24 plants He divides them into groups of 4. How many groups of plants does Dustin make?
a) Write a division equation so that the quotient is the number of groups Dustin makes?
b) Complete a multiplication equation.
a) 24 / 4 = 6
b) 6 x 4 = 24 or 4 x 6 = 24
Sam draws this array to represent 4 x 5. He says the array also represents 5 x 4. Is Sam correct? Explain your thinking.
x x x x x
x x x x x
x x x x x
x x x x x
Yes, Sam is correct. When you change the order of the factors, it does not change the product. Sam applied the commutative property.
Which situation can be represented by 4 x 3?
a) Hilda has 4 cookies. She puts 3 chocolate chips into 1 cookie.
b) Hilda has 4 cookies. She puts 3 chocolate chips into each cookie.
c) Hilda has 4 chocolate chips in 1 cookie. She takes 1 chip out of the coookie.
d) Hilda has 4 chocolate chips in 1 cookie. She adds 3 more chips to the cookie.
b) Hilda has 4 cookies. She puts 3 chocolate chips into each cookie.
Coach puts a total of 35 jump ropes into piles of 5. How many piles of jump ropes does Coach make?
7
Which expressions are equal to 8 x 5?
a) (3 x 5) + (5 x 5)
b) (2 x 5) + (4 x 5)
c) (4 x 5) + (4 x 5)
d) (5 x 5) x (3 x 5)
c
Fill in the blanks to find 8 x 4.
9 x 4 = (5 x 4) + ( __ x 4)
9 x 4 = 20 + ____
9 x 4 = ____
3
16
36
Coach wants to organize a game. The students earn 3 points for each goal they score. They score 24 points on Monday.
a) How many goals did they score on Monday?
b) To answer the question, Mr. Daubenspeck uses the equation 3 x __ = 24. Is Mr. Daubenspeck using the correct equation?
c) The players score 7 goals on Tuesday. How many points did they earn on Monday and Tuesday?
a) 24 / 3 = 8
b) Yes, Mr. Daubenspeck is correct.
c) Monday 24 pts.
Tuesday 7 x 3 = 21
24 + 21 = 45 points