Math Cam4. W4. rounding, factors and multiples

Round the following number to the nearest 1000:

17 593

• 17 000

• 17 600

• 18 000

• 19 000

Rounding to the nearest 10 we look at the ​ (a)   value to see if we should round up or down. Rounding to the nearest 100 we look at ​ (b)   value to see if we should round up or down. Rounding to the nearest 1000 we look at the ​ (c)   value to see if we should round up or down. Rounding to the nearest 10 000 we look at the ​ (d)   value to see if we round up or down, and rounding to the nearest 100 000 we look at the ​ (e)   value.

• ones
• tens
• hundreds
• thousands
• ten thousands
• millions
• hundred thousands
• none of the above

What are the factors of 20? Hint, factors are multiplied with each other to give a specific number

c

d

e

f

a

b

20

5

2

1

10

4

What are the factors of 6?

• 1 and 6

  2 and 3

• 1 and 3

  2 and 7

• none

What are the factors of 10

• 3 + 7 = 10

• 1 and 10

  2 and 5

• 3 and 4

  4 and 6

What are the factors of 18

• 2 and 9

  3 and 18

  4 and 6

• 2 and 7

  3 and 6

  1 and 18

• 1 and 18

  2 and 9

  3 and 6

The first 5 multiples of 6 are :​ ​ (a)   ,​ (b)   ,​ (c)   ,​ (d)   ,​ (e)  

• 6
• 12
• 18
• 24
• 30
• 13
• 42
• 10
• 40
• 60

If the 4th multiple of 7 is 28. the 6th multiple would be ​ (a)   and the 8th multiple would be ​ (b)   and the 10th multiple would be ​ (c)  

• 42
• 56
• 70
• 44
• 65
• 72

Round the following to the nearest 100 000

a

b

c

d

e

f

g

700 000

5 100 000

600 000

400 000

100 000

200 000

5 200 000

Is 20 a multiple of 5?

• Yes

• No