Question

Plz help me with question 1 and3

Answer 1

Answer:

Q1 - 60 Q3 - 9

Step-by-step explanation:

Q1

Firstly you must establish what the question is asking you to do

which is 1 s.f

The question is as follows 3.1 x 9.87 / 0.509

We are told to work out an estimate using only 1 s.f

Now we must round the numbers to 1 s.f

3.1 - 3

9.87 - 10

0.509 - 0.5

So the equation is as follows 3 x 10 / 0.5

30 / 0.5

To do this you can note it down as 300 / 5

= 60

Q3

First we must round the values to 1 s.f

This changes it from

89.3 x 0.51 /4.8 to 90 x 0.5 / 5

90 x 0.5 = 45

45 / 5 = 9

Therefore an estimation for Q3 is 9

Answer 2

Answer:

123

Step-by-step explanation:

2344