courses › Fractions, Decimals & Percents

Line up, multiply, and divide decimals without losing the point.

Best in your head · no pen, no calculator why?

Learn first (about 3 minutes)

Opens at level 7.

Sign in to start

Builds on: Gaps & place value (not open yet)

skills · practice stats

From rounds of this course only: box, review and trial answers are left out. Once a skill has 40 tries, it compares your first 20 tries with your last 20.

• Add & subtract decimals par 8 s not tried yet

  worked example

  16.4 − 10.71

  Answer: 5.69

  1. Line up the decimal points: 16.40 − 10.71 = 5.69.

• Multiply decimals par 7 s not tried yet

  worked example

  2.5 × 4

  Answer: 10

  1. Do 25 × 4 = 100 without the point, then put one decimal place back: 10.0, which is 10.

• Divide decimals par 7 s not tried yet

  worked example

  1.8 ÷ 6

  Answer: 0.3

  1. 1.8 is 18 ÷ 10, and 18 ÷ 6 = 3.
  2. So the answer is 3 ÷ 10 = 0.3.

rest ladder

Win 3 of your last 4 rounds and the course rests. A win is 90% right, within 2× the round's par. Pass the review when it comes back and the next rest is longer.

1. 1 day
2. 3 days
3. 7 days
4. 14 days
5. 30 days
6. 60 days
7. mastered · every 90 days

your rounds

No rounds yet.