Practice with the help of **Spectrum Math Grade 5 Answer Key Chapter 1 Posttest** regularly and improve your accuracy in solving questions.

## Spectrum Math Grade 5 Chapter 1 Posttest Answers Key

**Multiply.**

Question 1.

a.

Answer:

Multiplication of 280 with 3 we get 840.

Multiplication of 280 with 90 we get 25200.

Multiplication of 280 with 93 we get 26040.

b.

Answer:

Multiplication of 814 with 7 we get 5698.

Multiplication of 814 with 30 we get 24420.

Multiplication of 814 with 37 we get 30118.

c.

Answer:

Multiplication of 497 with 8 we get 3976.

Multiplication of 497 with 40 we get 19880.

Multiplication of 497 with 48 we get 23856.

d.

Answer:

Multiplication of 6492 with 2 we get 12984.

Multiplication of 6492 with 80 we get 519360.

Multiplication of 6492 with 82 we get 532344.

Question 2.

a.

Answer:

Multiplication of 2158 with 2 we get 4316.

Multiplication of 2158 with 30 we get 64740.

Multiplication of 2158 with 32 we get 69056.

b.

Answer:

Multiplication of 8291 with 4 we get 33164.

Multiplication of 8291 with 50 we get 414550.

Multiplication of 8291 with 54 we get 447714.

c.

Answer:

Multiplication of 212 with 1 we get 212.

Multiplication of 212 with 60 we get 12720.

Multiplication of 212 with 500 we get 106000.

Multiplication of 212 with 561 we get 118932.

d.

Answer:

Multiplication of 394 with 7 we get 2758.

Multiplication of 394 with 20 we get 7880.

Multiplication of 394 with 600 we get 236400.

Multiplication of 394 with 627 we get 247038.

Question 3.

a.

Answer:

Multiplication of 4176 with 3 we get 12528.

Multiplication of 4176 with 80 we get 334080.

Multiplication of 4176 with 200 we get 835200.

Multiplication of 4176 with 283 we get 1181808.

b.

Answer:

Multiplication of 9192 with 2 we get 18384.

Multiplication of 9192 with 60 we get 551520.

Multiplication of 9192 with 500 we get 4596000.

Multiplication of 9192 with 562 we get 5165904.

c.

Answer:

Multiplication of 7315 with 1 we get 7315.

Multiplication of 7315 with 40 we get 292600.

Multiplication of 7315 with 100 we get 731500.

Multiplication of 7315 with 141 we get 1031415.

d.

Answer:

Multiplication of 5639 with 4 we get 22556.

Multiplication of 5639 with 70 we get 394730.

Multiplication of 5639 with 300 we get 1691700.

Multiplication of 5639 with 374 we get 2108986.

**Divide.**

Question 4.

a.

Answer:

Therefore the quotient 2142 ÷ 6 is 357.

Therefore the remainder of 2142 ÷ 6 is 0.

b.

Answer:

Therefore the quotient 8676 ÷ 4 is 2169.

Therefore the remainder of 8676 ÷ 4 is 0.

c.

Answer:

Therefore the quotient 392 ÷ 49 is 8.

Therefore the remainder of 392 ÷ 49 is 0.

d.

Answer:

Therefore the quotient 2589 ÷ 34 is 76.

Therefore the remainder of 2589 ÷ 34 is 5.

Question 5.

a.

Answer:

Therefore the quotient 2589 ÷ 34 is 76.

Therefore the remainder of 2589 ÷ 34 is 5.

b.

Answer:

Therefore the quotient 213 ÷ 45 is 4.

Therefore the remainder of 213 ÷ 45 is 33.

c.

Answer:

Therefore the quotient 1708 ÷ 61 is 28.

Therefore the remainder of 1708 ÷ 61 is 0.

d.

Answer:

Therefore the quotient 4649 ÷ 94 is 43.

Therefore the remainder of 4649 ÷ 94 is 49.

Question 6.

a.

Answer:

Therefore the quotient of 9243 ÷ 52 is 177.

Therefore the remainder of 9243 ÷ 52 is 39.

b.

Answer:

Therefore the quotient of 3174 ÷ 68 is 46.

Therefore the remainder of 3174 ÷ 68 is 26.

c.

Answer:

Therefore the quotient of 4236 ÷ 16 is 264.

Therefore the remainder of 4236 ÷ 16 is 12.

d.

Answer:

Therefore the quotient of 2748 ÷ 81 is 33.

Therefore the remainder of 2748 ÷ 81 is 75.

**Solve each problem.**

Question 7.

The park’s sprinklers can spray 1,748 gallons of water on the grass in 38 minutes. How many gallons can they spray in one minute?

They can _____ spray gallons per minute.

Answer:

Given that,

The park’s sprinklers can spray 1,748 gallons of water on the grass in 38 minutes.

The gallons can spray in one minute is 1748 ÷ 38 = 46

Therefore, They can 46 spray gallons per minute.

Question 8.

The auto factory will build 1,908 new trucks in the next 32 days. How many will it build in one day?

It will build ________________ trucks each day.

Answer:

Given that,

The auto factory will build 1,908 new trucks in the next 32 days.

The number of new trucks build in one day is 1908 ÷ 32 = 59.625.

Therefore, It will build 59.625 trucks each day.

Question 9.

Pizza Depot will open 31 new restaurants next year. Each restaurant will need 27 employees. How many employees will Pizza Depot need to hire for the new restaurants?

Pizza Depot will need to hire _______________ employees.

Answer:

Given that,

Pizza Depot will open 31 new restaurants next year.

Each restaurant will need 27 employees.

The number of employees hire for the new restaurants is 31 x 27 = 837.

Therefore, Pizza Depot will need to hire 837 employees.

Question 10.

The parking lot has 1,326 spaces to hold cars. The lot is divided into 26 equal rows. How many cars can be parked in each row?

________________ cars can park in each row.

Answer:

Given that,

The parking lot has 1,326 spaces to hold cars.

The lot is divided into 26 equal rows.

The cars parked in each row is 1326 ÷ 26 = 51.

Therefore, there are 51 cars can park in each row.

Question 11.

If a machine can make 761 pencils in a second, how many pencils can it make in 23 seconds?

It can make _______________ pencils.

Answer:

Given that,

If a machine can make 761 pencils in a second.

The number of pencils in 23 seconds is 761 x 23 = 17,503.

Therefore, It can make 17,503 pencils.

Question 12.

In New York City, each mail truck has 1,023 pieces of junk mail. If there are 71 mail trucks, how much junk mail do they have total?

They have ______________ pieces of junk mail.

Answer:

Given that,

Each mail truck has 1,023 pieces of junk mail.

If there are 71 mail trucks.

Therefore the number of junk mails in 71 mail trucks is 1023 x 71 = 72,633.

They have 72,633 pieces of junk mail.