1st Grade Math · Half
Half of 40
Half of 40 is 20
40 ÷ 2 = 20
How to find half of 40
- 1Half means splitting 40 into 2 equal groups, so work out 40 ÷ 2.
- 240 is 4 tens. Half of 4 tens is 2 tens.
- 32 tens is 20, so half of 40 is 20.
Check it: put the two halves back together and you get 20 + 20 = 40.
Halving the numbers near 40
| Number | Half of it |
|---|---|
| Half of 36 | 18 |
| Half of 38 | 19 |
| Half of 40 (this page) | 20 |
| Half of 42 | 21 |
| Half of 44 | 22 |
Halving is the same as dividing by 2, and the same as sharing 40 equally between two people. It is also how you undo doubling: 20 doubled is 40. Practise it below — the lesson has 5 problems and gives you the answer the moment you try.
Lesson 40 of 84 · Half
Practise halving 40
Work through halving 40 yourself. Halving the tens and the ones separately makes any two-digit number easy.
Ready?
Half of 40
Turn the recipe into the answer.
Full screen — no distractions
Half of 40 — common questions
What is half of 40?
Half of 40 is 20. Halving means splitting a number into two equal groups, so half of 40 is 40 ÷ 2 = 20, and 20 + 20 = 40.
How do you work out half of 40?
Split 40 into tens and ones, halve each part, then add them back together. 40 halves to 20 and 0 halves to 0, and 20 + 0 = 20.
Is 40 an even number?
Yes. 40 ends in 0, so it is even, which is why it halves to the whole number 20.
What is 40 divided by 2?
40 ÷ 2 = 20. Dividing by 2 and halving are the same thing.
Done with math? Try something else
Print the whole Half track
All 1st Grade Half lessons as a printable PDF, with worksheets and answer keys.