This handy Math in Focus Grade 2 Workbook Answer Key Chapter 15 Practice 4 Multiplying 4: Using Dot Paper detailed solutions for the textbook questions.
Math in Focus Grade 2 Chapter 15 Practice 4 Answer Key Multiplying 4: Using Dot Paper
Solve.
Example
There are 3 boxes of crayons. There are 4- crayons in each box. How many crayons are there in all?
Question 1.
There are 6 toy cars in a toy box. Each car has 4 wheels. How many wheels are there in all?
___________ × 4 = __________
There are ___________ wheels in all.
Answer:
6 x 4 = 24
There are 24 wheels in all.
Use dot paper to solve.
Question 2.
Mrs. Jones buys 5 T-shirts. Each T-shirt costs $4. How much does Mrs. Jones spend in all?
___________ × $4 = $___________
Mrs. Jones spends $___________ in all.
Answer:
5 x $4 = $20
Mrs. Jones spends $20 in all.
Question 3.
There are 8 bags. Each bag has 4 muffins. How many muffins are there in all?
___________ × ___________ = ___________
There are ___________ muffins in all.
Answer:
8 x 4 = 32
There are 32 muffins in all.
Use dot paper to help you fill in the blanks.
Example
Question 4.
10 × 4 = ___________
8 × 4 = 10 groups of 4 – ____________ groups of 4
= ____________ – 8
= ____________
Answer:
10 × 4 = 40
8 × 4 = 10 groups of 4 – 2 groups of 4
= 40 – 8
= 32
Question 5.
7 × 4 = _________ + 8
= ___________
Answer:
7 x 4 = ( 5 x 4 ) + 8
= 20 + 8
= 28.
Question 6.
9 × 4 = _________ – 4
= ____________
Answer:
9 x 4 = ( 10 x 4 ) – 4
= 40 – 4
= 36
Use dot paper to help you fill ¡n the blanks.
Example
Question 7.
Answer:
7 x 4 = 28 4 x 7 = 28
Question 8.
Answer:
9 x 4 = 36 4 x 9 = 36