All the solutions provided in McGraw Hill My Math Grade 3 Answer Key PDF Chapter 6 Multiplication and Division Patterns will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 3 Answer Key Chapter 6 Multiplication and Division Patterns
Essential Question?
What is the importance of patterns in learning multiplication and
Am I Ready?
Multiply.
Question 1.
6 × 4 = ____
Answer:
Given that,
In the diagram there are 6 columns and 4 rows.
Multiply 6 with 4 then you get 24.
Therefore the answer is 24.
Question 2.
1 × 5 = ____
Answer:
Given that,
In the diagram there are 1 columns and 5 rows.
Multiply 1 with 5 then you get 5.
Therefore the answer is 5.
Question 3.
7 × 2 = ____
Answer:
Given that,
In the diagram there are 7 columns and 2 rows.
Multiply 7 with 2 then you get 14.
Therefore the answer is 14.
Draw an array for each. Multiply.
Question 4.
4 × 5 = ____
Answer:
Multiply 4 with 5 then you get 20.
Draw an array with 4 rows and 5 columns.
Question 5.
1 × 6 = ____
Answer:
Multiply 1 with 6 then you get 6.
Draw an array with 6 rows and 1 columns.
Question 6.
2 × 9 = ____
Answer:
Multiply 2 with 9 then you get 18.
Draw an array with 9 rows and 2 columns.
Identify a pattern. Then find the missing numbers.
Question 7.
___, ____, 30, 25, 20, 15
The pattern is ______
Answer:
From the given data
15 + 5 = 20
20 + 5 = 25
25 + 5 = 30
30 + 5 = 35
35 + 5 = 40.
Therefore the missing numbers are 35, 40.
The patten is 40, 35, 30, 25, 20, 15.
Question 8.
___, ____, 16, 14, 12, 10
The pattern is ____.
Answer:
From the given data,
10 + 2 = 12.
12 + 2 = 14.
14 + 2 = 16.
16 + 2 = 18.
18 + 2 = 20.
The missing numbers are 18, 20.
The patten is 20, 18, 16, 14, 12, 10.
Question 9.
Louis has 2 quarters. Yellow whistles cost 5 each. Louis wants to buy 8 whistles. Does he have enough money? Explain.
Answer:
Given that,
Louis has 2 quarters.
1 quarter = 25 cents.
2 quarter = 25 x 2 = 50 cents.
Yellow whistles cost 5 each.
Louis wants to buy 8 whistles.
The cost of 8 whistles is 8 x 5 = 40.
Therefore he has a enough money to buy the 8 whistles.
Question 10.
Nine trees lined each side of a street. Some trees were cut down leaving a total of 7 trees. How many trees were cut down?
Answer:
Given that,
The total number of trees are 9.
Some trees were cut down leaving a total of 7 trees. It means they leave the 7 trees and cut the remaining trees.
Therefore the number of trees cut down are 9 – 7 = 2.
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