# Maths flashcards Cards

What is 23745 rounded to the nearest ten?
23745
1 of 6
Write 2.6470588 to 2 decimal places
2.65
2 of 6
What would you get if you wrote the number 368249 correct to 1 significant figure
400000
3 of 6
What would you get if you wrote the number 0.00245 correct to 1 significant figure?
0.002
4 of 6
Find a rough answer to 19.4 over 0.0437
We first round off both numbers to 1 significant figure (s.f.): 19.4 = 20 (1 s.f.) 0.0437 = 0.04 (1 s.f.) So we now need to make the denominator a whole number. We can do this by multiplying both 20 and 0.04 by 100. 20 over 0.04 = 20 x 100 over 0.04
5 of 6
A fence is 22m long to the nearest metre. What are the upper and lower bounds?
The lower bound is 21.5m and the upper bound is 22.5m
6 of 6

## Other cards in this set

### Card 2

#### Front

Write 2.6470588 to 2 decimal places

2.65

### Card 3

#### Front

What would you get if you wrote the number 368249 correct to 1 significant figure

### Card 4

#### Front

What would you get if you wrote the number 0.00245 correct to 1 significant figure?

### Card 5

#### Front

Find a rough answer to 19.4 over 0.0437