Photo AI

Work out. (a) 89 + 14 (b) 17 × 21 - OCR - GCSE Maths - Question 1 - 2019 - Paper 1

Question icon

Question 1

Work-out.-(a)-89-+-14--(b)-17-×-21-OCR-GCSE Maths-Question 1-2019-Paper 1.png

Work out. (a) 89 + 14 (b) 17 × 21

Worked Solution & Example Answer:Work out. (a) 89 + 14 (b) 17 × 21 - OCR - GCSE Maths - Question 1 - 2019 - Paper 1

Step 1

(a) 89 + 14

96%

114 rated

Answer

To solve the addition problem, we simply add the two numbers:

  1. Start with the first number: 89
  2. Add the second number: 14

So:

89+14=10389 + 14 = 103

Thus, the answer is 103.

Step 2

(b) 17 × 21

99%

104 rated

Answer

To solve the multiplication problem, we can use the standard multiplication algorithm:

  1. Write down the numbers:

    • 17
    • 21

  2. Multiply 17 by each digit of 21, starting from the right:

    • Multiply 17 by 1 (the units digit of 21): 17imes1=1717 imes 1 = 17
    • Multiply 17 by 2 (the tens digit of 21), which represents 20: 17imes2=3417 imes 2 = 34

  3. Add the results together, remembering to shift the second result left by one place:

    17+340=35717 + 340 = 357

Thus, the answer is 357.

Join the GCSE students using SimpleStudy...

97% of Students

Report Improved Results

98% of Students

Recommend to friends

100,000+

Students Supported

1 Million+

Questions answered

;