Students can use the Spectrum Math Grade 3 Answer Key Chapter 4 Pretest as a quick guide to resolve any of their doubts.
Spectrum Math Grade 3 Chapter 4 Pretest Answers Key
Check What You Know
Multiply.
Question 1.
a.
Answer:
Multiplication of 2 with 0 we get 0.
b.
Answer:
Multiplication of 5 with 1 we get 5.
c.
Answer:
Multiplication of 4 with 3 we get 12.
d.
Answer:
Multiplication of 0 with 2 we get 0.
e.
Answer:
Multiplication of 5 with 6 we get 30.
f.
Answer:
Multiplication of 3 with 8 we get 24.
Question 2.
a.
Answer:
Multiplication of 7 with 2 we get 14.
b.
Answer:
Multiplication of 9 with 3 we get 27.
c.
Answer:
Multiplication of 8 with 8 we get 64.
d.
Answer:
Multiplication of 6 with 3 we get 18.
e.
Answer:
Multiplication of 4 with 5 we get 20.
f.
Answer:
Multiplication of 5 with 4 we get 20.
Question 3.
a.
Answer:
Multiplication of 6 with 6 we get 36.
b.
Answer:
Multiplication of 3 with 9 we get 27.
c.
Answer:
Multiplication of 1 with 7 we get 7.
d.
Answer:
Multiplication of 5 with 3 we get 15.
e.
Answer:
Multiplication of 2 with 6 we get 12.
f.
Answer:
Multiplication of 2 with 2 we get 4.
Question 4.
a.
Answer:
Multiplication of 3 with 0 we get 0.
b.
Answer:
Multiplication of 4 with 7 we get 28.
c.
Answer:
Multiplication of 6 with 9 we get 54.
d.
Answer:
Multiplication of 4 with 4 we get 16.
e.
Answer:
Multiplication of 5 with 1 we get 5.
f.
Answer:
Multiplication of 2 with 9 we get 18.
Question 5.
a.
Answer:
Multiplication of 7 with 4 we get 28.
b.
Answer:
Multiplication of 3 with 7 we get 21.
c.
Answer:
Multiplication of 2 with 3 we get 12.
d.
Answer:
Multiplication of 4 with 2 we get 8.
e.
Answer:
Multiplication of 9 with 1 we get 9.
f.
Answer:
Multiplication of 6 with 5 we get 30.
Question 6.
a.
Answer:
Multiplication of 80 with 3 we get 240.
b.
Answer:
Multiplication of 50 with 4 we get 200.
c.
Answer:
Multiplication of 30 with 7 we get 210.
d.
Answer:
Multiplication of 20 with 5 we get 100.
e.
Answer:
Multiplication of 50 with 1 we get 50.
f.
Answer:
Multiplication of 80 with 4 we get 320.
Question 7.
a.
Answer:
Multiplication of 20 with 4 we get 80.
b.
Answer:
Multiplication of 10 with 3 we get 30.
c.
Answer:
Multiplication of 20 with 3 we get 60.
d.
Answer:
Multiplication of 30 with 3 we get 90.
e.
Answer:
Multiplication of 40 with 2 we get 80.
f.
Answer:
Multiplication of 80 with 1 we get 80.
Question 8.
a.
Answer:
Multiplication of 60 with 2 we get 120.
b.
Answer:
Multiplication of 70 with 1 we get 70.
c.
Answer:
Multiplication of 40 with 3 we get 120.
d.
Answer:
Multiplication of 30 with 2 we get 60.
e.
Answer:
Multiplication of 50 with 2 we get 100.
f.
Answer:
Multiplication of 10 with 5 we get 50.
Question 9.
a.
Answer:
Multiplication of 40 with 4 we get 160.
b.
Answer:
Multiplication of 10 with 3 we get 30.
c.
Answer:
Multiplication of 20 with 7 we get 140.
d.
Answer:
Multiplication of 30 with 4 we get 120.
e.
Answer:
Multiplication of 60 with 3 we get 180.
f.
Answer:
Multiplication of 20 with 9 we get 180.
Make a mental computation first. Then, solve each problem.
Question 10.
John bought two 40-cent stamps. How many cents did John spend on stamps?
Mental computation: ______________
The stamps cost ___________ cents.
Answer:
Given that,
John bought two 40-cent stamps.
I know that two 40-cents means 40 plus 40 equal to 80. So, therefore there are 80 stamps.
Mental computation: 80
The stamps cost 40 cents.
Question 11.
A clown had 10 balloons that he sold at a carnival for 6 cents each. If he sold all 10 balloons, how much money did he make?
Mental computation: _____________
The clown made __________ cents.
Answer:
Given that,
A clown had 10 balloons that he sold at a carnival for 6 cents each.
I know that 10 times of 6 is 60. So, the 10 balloons sold for 60 cents. The total money that clown made is 60.
Mental computation: 60.
The clown made 60 cents.
Solve each problem.
Question 12.
The movie rental kiosk charges 3 dollars to rent each movie. Miss Padilla rents 5 movies. How much will the movie rental kiosk charge her?
The movie rental kiosk will charge Miss Padilla ____________ dollars.
Answer:
Given that,
The movie rental kiosk charges 3 dollars to rent each movie.
Miss Padilla rents 5 movies.
So, The charges for 5 movies is 3dollars x 5 = 15 dollars.
Therefore, The movie rental kiosk will charge Miss Padilla 15 dollars.
Question 13.
Sally wants to buy 3 stickers. The stickers each cost 20 cents. How much will Sally spend on the 3 stickers?
Sally will spend __________ cents on the 3 stickers.
Answer:
Given that,
Sally wants to buy 3 stickers.
The stickers each cost 20 cents.
So, the cost the 3 stickers is 3 x 20cents = 60 cents.
Therefore, Sally will spend 60 cents on the 3 stickers.