1(a) Work out - OCR - GCSE Maths - Question 1 - 2019 - Paper 2
Question 1
1(a) Work out.
(i) £4.25 + £5.18
(ii) -8 + 11
(iii) -6 ÷ -9
(b) Use one of these symbols <, > or = to make each statement true.
(i) 4.5 ............... 4.34
(i... show full transcript
Worked Solution & Example Answer:1(a) Work out - OCR - GCSE Maths - Question 1 - 2019 - Paper 2
Step 1
(i) £4.25 + £5.18
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Answer
To find the sum of £4.25 and £5.18, we align the numbers by the decimal point:
4.25
+ 5.18
------
Now we add:
Starting from the right, 5 + 8 = 13. Write down 3 and carry over 1.
Next, 2 + 1 (carry) + 1 = 4.
Lastly, 4 + 5 = 9.
So, £4.25 + £5.18 = £9.43.
Step 2
(ii) -8 + 11
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Answer
To calculate -8 + 11:
This is the same as calculating 11 - 8, since adding a positive number is equivalent to subtracting its negative counterpart.
Thus, 11 - 8 = 3.
Therefore, -8 + 11 = 3.
Step 3
(iii) -6 ÷ -9
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Answer
To solve -6 divided by -9:
When dividing two negative numbers, the result is positive. So, we calculate:
o = rac{-6}{-9} = rac{6}{9} = rac{2}{3}.
Thus, -6 ÷ -9 = 2/3.
Step 4
(i) 4.5 ............... 4.34
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Answer
To compare 4.5 and 4.34:
Since 4.5 is greater than 4.34, we write:
4.5 > 4.34.
Step 5
(ii) 3/4 ............... 0.8
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Answer
To compare 3/4 and 0.8:
First, we convert 3/4 into decimal form:
o = 3 ÷ 4 = 0.75.
Since 0.75 < 0.8, the comparison is:
3/4 < 0.8.
Step 6
(iii) 3/5 ............... 0.6
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