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Lesson: Multiplying by Multiples of 10, 100, and 1000 Mentally

In this lesson, we will learn how to multiply multiples of 10, 100, and 1000 mentally using basic facts and patterns.

Sample Question Videos

00:44

Worksheet • 25 Questions • 1 Video

Q1:

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

Q2:

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

  • A 16, 1 600
  • B160, 15
  • C16, 160
  • D150, 15
  • E170, 17

Q3:

Fill in the blanks:

  • A2, 200
  • B20, 20
  • C9, 900
  • D200, 2

Q4:

Complete:

Q5:

Complete:

Q6:

1 8 × 1 0 = t h o u s a n d s .

  • A18 ten thousands
  • B19 thousands
  • C18 hundred thousands
  • D19 ten thousands
  • E18 hundreds

Q7:

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

  • A 1 2 0 0 p o u n d s
  • B 1 2 p o u n d s
  • C 1 2 0 p o u n d s
  • D 1 3 0 0 p o u n d s
  • E 1 1 0 0 p o u n d s

Q8:

If a train has 5 carriages, where each carriage has 100 seats, how many seats are in the train?

Q9:

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

Q10:

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?

Q11:

What is 1 0 0 × 1 = ?

Q12:

Calculate 1 , 0 0 0 × 6 .

Q13:

Complete:

Q14:

Complete.

Q15:

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

Q16:

Fill in the blanks:

  • A50, 5 000
  • B45, 4 500
  • C15, 1 500
  • D40, 4 000
  • E55, 5 500

Q17:

9 3 × 1 0 = t e n s .

  • A93 hundreds
  • B103 tens
  • C93 ones
  • D103 hundreds
  • E93 thousands

Q18:

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.

Q19:

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 0 is 10 times as large as 2 2 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 is 10 more than 2 2 0 0 0 .

Q20:

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 = .

Q21:

Complete:

Q22:

Fill in the blanks:

  • A4, 8
  • B5, 8
  • C4, 6
  • D4, 4

Q23:

Fill in the blank in 1 0 × 6 × 3 = .

Q24:

Fill in the blanks:

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

Q25:

Which of the choices is equal to 1 0 0 × 2 ?

  • A 1 0 0 + 1 0 0
  • B 1 0 0 + 1 0 0 + 1 0 0 + 1 0 0
  • C100
  • D 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
  • E 1 0 0 + 1 0 0 + 1 0 0
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