Lesson 19: Multiplication - Fives
Objective
Students will be able to multiply with fives.
Warm up
Review skip counting by fives with the students. Model it on MathLine.
10
15
20
30
35
40
45
25
50
Write this problem on the chalkboard: 4 x 5 =
Tell the students that 4 x 5 means four groups of 5. Guide the students to use MathLine to model this
problem.
5
10
15
20
1. Build 4 groups of 5 rings
on MathLine.
2. Multiply by adding the rings together and check the answer on MathLine.
4 x 5 = 20
Student Page
4 x 5 = 20
Read the Practice section aloud as students read it silently. Encourage them to model the problem using
their MathLines. Encourage students to complete the other sections independently.
Test Preparation
Have the students write multiplication word problems. Model with stickers or cutouts. Trade with a
friend and solve each other’s word problems. Check work on MathLine.
Extension
Play a whole class game called, “Beep Beep.” Have everyone sit in a circle. One by one have the
students count from 1 to 100. When the number is a multiple of 5, the student must say, “Beep
Beep”! If a student says the wrong number of one of the multiples of 5, they are out of the game
until the next round.
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5
Name
Lesson 19: Multiplication - Fives
Practice
Find the product: 2 x 5 =
All Rights Reserved/Howbrite Solutions
2 x 5 means 2 groups of 5. Build 2 groups of 5 on MathLine.
Count by fives
to find the
product 5, 10.
5
10
Multiply by adding the rings together and check the answer on MathLine.
2 x 5 = 10
factor
factor
product
Activities
Use MathLine to solve the problems.
3 x 5 = ______
3 groups of 5
4 x 5 = ______
4 groups of 5
1 x 5 = ______
1 group of 5
5 x 5 = ______
5 groups of 5
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Name
Draw the groups of rings on MathLine to show each problem.
6 x 5 = ______
6 groups of 5
9 groups of 5
8 x 5 = ______
8 groups of 5
10 x 5 = ______
10 groups of 5
Application
Solve.
1. Gumballs cost 5 ¢ each. If Steve buys 9 gumballs, how much will he pay?
2. Lee has 45 pennies. He is placing them in stacks of 5. How many total stacks does he have?
Challenge
Identify each number.
1. If you multiply me by 9, you get 45. What number am I? _________
2. If you multiply me by 5, you get 40. What number am I? _________
3. If you multiply me by 7 and subtract 3, you get 32. What number am I? ________
4. If you multiply me by 5 and subtract 8, you get 7. What number am I? _______
5. If you multiply me by 5 and add 9, you get 39. What number am I? _______
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9 x 5 = ______