RANGER Math practice · Pre-algebra · ages 11+
Free negative numbers (integers) practice
The Ice Pond world in Ranger's Math Trail covers negative numbers: adding and subtracting them with a number line, then multiplying and dividing with the sign rules.
Every adding and subtracting answer shows the hop on a number line, so you can see why −3 + 5 lands on 2.
Pick a level
Free, no sign-up. The game asks your age once, then every answer comes with a hint and a step-by-step Show me how.
How to do it
- Adding a positive number moves right on the number line. Adding a negative number moves left.
- Subtracting is adding the opposite: 4 − (−6) = 4 + 6 = 10.
- Multiplying or dividing: work out the size first, then the sign.
- Same signs give a positive answer. Different signs give a negative answer.
Worked examples
Example 15 − (−10) = ?
- Subtracting is adding the opposite: 5 − (−10) = 5 + 10.
- Start at 5 on the number line.
- Adding 10 moves 10 to the RIGHT.
- You land on 15.
Answer: 15
Try one like it →Example 2−9 × 3 = ?
- Multiply the sizes: 9 × 3 = 27.
- The signs are DIFFERENT, so the answer is negative.
- Answer: −27.
Answer: −27
Try one like it →Mistakes to watch for
- Two minus signs next to each other, like − (−5), become a plus.
- −7 is smaller than −2, even though 7 is bigger than 2.
The game
Questions
How do I type a negative number?
Use the − key on the game's number pad, or the minus key on a keyboard.
What age is it for?
Negative numbers usually come in around grade 6 or 7 (ages 11 to 12).
More math practice: Addition · Subtraction · Multiplication facts · Division and long division · Place value and rounding · Fractions · Decimals · Percents and ratios · Order of operations · Exponents and square roots · Solving equations · Slope and linear equations · Systems of equations · Factoring quadratics · Area, perimeter and volume · Angles · Pythagorean theorem · Circles · Mean, median, mode and range · All math topics