Limitations of technology in calculations | Maths | Quizalize & Oak National Academy

Starter quiz

Using a calculator, calculate the simplified fraction of $196 \over 190$ .
- $98 \over 95$ ✓
- $96 \over 90$
- $62 \over 60$
- $16 \over 15$
Using a calculator, work out the answer to ${16 \over 15} \times {30 \over 32}$ .
- $480 \over 320$
- 4
- 2
- 1 ✓
Izzy's calculator gives an answer as a fraction. What is the name of the key that should be pressed last on the Casio fx-991CW in order to convert this fraction to a decimal?
- 'EXE' ✓
Using a calculator, match the decimal to the equivalent fraction.
- 0.35
  
  ⇔
  
  $7 \over 20$ ✓
- 0.894
  
  ⇔
  
  $447 \over 500$ ✓
- 2.134
  
  ⇔
  
  $1067 \over 500$ ✓
- 2.413
  
  ⇔
  
  $2413 \over 1000$ ✓
The format key on the Casio fx-991CW allows you to change between decimals, improper fractions and mixed numbers.
- True ✓
- False
Using your calculator, find the answer to ${21 \over 12} \times {2 \over 3}$
- 1.16666
- 1.166666667 ✓
- 1.1666666666666666666667
- 1.166666666666666666666666666666