Halfway between two numbers
Which number is exactly halfway between two others, such as −20 and 30? A number line from one to the other helps the student count in from both ends.
About half the questions start below zero, so the student has to count across zero.
Numbers&Me is free. Sign up to practise more, or set it as homework in under a minute, and it marks itself.
What changes each time
- Number lines counting in 1s, 2s, 5s or 10s
- Ends from below zero up to about 3,000
- The answer is always a whole number on a marked tick
More number sense and place value practice
- Tens and ones (Grade 1)
- Comparing numbers (<, = and >) (Grade 1)
- Hundreds, tens and ones (Grade 2)
- Odd and even numbers (Grade 2)
- Writing numbers in digits (Grade 3)
- Place value (Grade 3)
- Smallest and largest numbers (Grade 3)
- Rounding on a number line (Grade 3)
- Making numbers with 1, 2, 4 and 8 (Grade 3)
- Negative numbers on a number line (Grade 4)
- Nth largest and smallest numbers (Grade 5)