Fractions to decimals with a calculator
The Maths Habit
The friends share the chocolate bars fairly.
How can they do it?
Cut every bar into 4.
Each friend gets one piece of every bar.
Write it as a division.
- Numerator
- The top number of a fraction. 34
- Denominator
- The bottom number of a fraction. 34
- Decimal
- A number written with a decimal point. 0.75
One share is one part of each bar.
- 1Top ÷ bottom.The top is shared by the bottom.
- 2Press the keys.Top, then ÷, then bottom, then =.
Which keys do you press for 34?
Which keys do you press for 25?
Which keys do you press for 34?
Which keys do you press for 12?
Which keys do you press for 34?
Which keys do you press for 310?
Which keys do you press for 34?
Which keys do you press for 45?
1Which keys do you press for 14?
2Which keys do you press for 35?
3Which keys do you press for 18?
4Which keys do you press for 210?
One share is one part of each bar.
- 1Top ÷ bottom.The top is shared by the bottom.
- 2Press the keys.Top, then ÷, then bottom, then =.
- 3Read the display.This is the decimal.
Write 34 as a decimal.
Write 15 as a decimal.
Write 34 as a decimal.
Write 24 as a decimal.
Write 34 as a decimal.
Write 18 as a decimal.
Write 34 as a decimal.
Write 320 as a decimal.
Answer sheet
Is it right?
Thumbs up: right. Thumbs down: wrong.
12 is 0.5
Right14 is 0.4
Wrong: 14 is 0.25For 35, press 5 ÷ 3 =
Wrong: press 3 ÷ 5 =210 is 0.2
Right15 is 0.5
Wrong: 15 is 0.2
Put in order, smallest first: 0.3, 14, 38
14, 0.3, 38Write 214 as a decimal.
2.25A calculator shows 0.05. The fraction had 1 on top. Which fraction was it?
120
Write 18 as a decimal.
0.125Write 320 as a decimal.
0.15Write 720 as a decimal.
0.35