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

Q1:

9 3 × 1 0 = t e n s .

  • 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: 1 0 × 1 6 0 = × 1 0 0 = .

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

Q4:

Fill in the blanks: 1 0 × 1 1 0 = × 1 0 0 = .

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

Q5:

A merchant bought 8 TV sets for 4 0 0 0 p o u n d s each, and 2 radio sets for 8 0 0 p o u n d s each. Calculate how much they paid.

Q6:

Which of the following states the relationship between the numbers 2 2 0 0 0 and 2 2 0 0 ?

  • A 2 2 0 0 is 10 more than 2 2 0 0 0 .
  • B 2 2 0 0 is 10 less than 2 2 0 0 0 .
  • C 2 2 0 0 0 is 10 times as small as 2 2 0 0 .
  • D 2 2 0 0 0 is 10 times as large as 2 2 0 0 .

Q7:

The average weekly profit of a shop is 1 0 0 0 p o u n d s . 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 1 1 0 0 p o u n d s
  • B 1 2 0 p o u n d s
  • C 1 3 0 0 p o u n d s
  • D 1 2 0 0 p o u n d s
  • E 1 2 p o u n d s

Q11:

Fill in the blank: 1 0 × 1 6 0 = × 1 0 0 .

Q12:

Fill in the blank in 1 0 × 6 × 3 = .

Q13:

1 8 × 1 0 = t h o u s a n d s .

  • 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 1 0 0 × 2 ?

  • A 1 0 0 + 1 0 0 + 1 0 0
  • B100
  • C 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0
  • D 1 0 0 + 1 0 0
  • E 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0

Q17:

Complete.

Q18:

Calculate 1 0 0 0 × 6 .

Q19:

Complete the following: T h r e e - p o u n d n o t e s t h r e e - p o u n d n o t e s f o u r - p o u n d n o t e s p o u n d s 1 0 + 1 0 0 + 5 0 = .

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.