# Worksheet: Multiplying by Multiples of 10, 100, and 100 Mentally

Q1:

.

• A93 thousands
• B93 ones
• C103 hundreds
• D93 hundreds
• E103 tens

Q2:

Fill in the blanks:

• A200, 2
• B20, 20
• C9, 900
• D2, 200

Q3:

Fill in the blanks: .

• A170, 17
• B16, 160
• C150, 15
• D 16, 1 600
• E160, 15

Q4:

Fill in the blanks: .

• A120, 12
• B11, 110
• C100, 10
• D 11, 1 100
• E110, 10

Q5:

A merchant bought 8 TV sets for each, and 2 radio sets for each. Calculate how much they paid.

Q6:

Which of the following states the relationship between the numbers and ?

• A is 10 more than .
• B is 10 less than .
• C is 10 times as small as .
• D is 10 times as large as .

Q7:

The average weekly profit of a shop is . How much profit do they make in 99 weeks?

Q8:

Complete:

Q9:

Complete:

Q10:

If a person saves 100 pounds every month, how much will they save in a year?

• A
• B
• C
• D
• E

Q11:

Fill in the blank: .

Q12:

Fill in the blank in .

Q13:

.

• A18 hundreds
• B18 hundred thousands
• C19 ten thousands
• D18 ten thousands
• E19 thousands

Q14:

Complete:

Q15:

Fill in the blanks:

• A990, 990
• B 9 900, 990
• C99, 990
• D990, 9 900

Q16:

Which of the choices is equal to ?

• A
• B100
• C
• D
• E

Q17:

Complete.

Q18:

Calculate .

Q19:

Complete the following:

Q20:

If a train has 5 passenger cars, where each passenger car has 100 seats, how many seats are in the train?

• A 1 005 seats
• B105 seats
• C50 seats
• D500 seats

Q21:

A library contains 100 bookcases. Each bookcase has 4 shelves and each shelf contains 9 books. How many books are in the library?

Q22:

Fill in the blanks:

• A55, 5 500
• B15, 1 500
• C40, 4 000
• D50, 5 000
• E45, 4 500

Q23:

Fill in the blanks:

• A4, 4
• B5, 8
• C4, 6
• D4, 8

Q24:

Complete:

Q25:

The price of one radio is 200 pounds. Find the price of 8 radios.