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1 (a) Work out 3.67 × 4.2 (b) Work out 59.84 + 1.6 - Edexcel - GCSE Maths - Question 2 - 2021 - Paper 1
Question 2
1 (a) Work out 3.67 × 4.2 (b) Work out 59.84 + 1.6
Worked Solution & Example Answer:1 (a) Work out 3.67 × 4.2 (b) Work out 59.84 + 1.6 - Edexcel - GCSE Maths - Question 2 - 2021 - Paper 1
Step 1
Work out 3.67 × 4.2
Answer
To solve the multiplication of 3.67 and 4.2, we can set it up as follows:
-
Multiply 3.67 by 4.2 directly:
3.67 × 4.2
734 (This is 3.67 multiplied by 2, writing down the '2' in the units column)
- 1468 (This is 3.67 multiplied by 4, writing this down shifted one place to the left)
15414 (Now add the two results together)
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Position the decimal point correctly. There is a total of 3 decimal places in the numbers we multiplied (2 in 3.67 and 1 in 4.2). Thus, the answer is:
15.414.
Step 2
Work out 59.84 + 1.6
Answer
To perform the addition of 59.84 and 1.6, we will align the numbers by their decimal point:
59.84
- 1.60
61.44
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Start by adding the numbers column by column, starting from the right:
- In the hundredths place: 4 + 0 = 4
- In the tenths place: 8 + 6 = 14 (write 4, carry over 1)
- In the units place: 9 + 1 + 1 (carry) = 11 (write 1, carry over 1)
- In the tens place: 5 + 0 + 1 (carry) = 6
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Therefore, the final answer is:
61.44