1st Grade Math · Half
Half of 80
Half of 80 is 40
80 ÷ 2 = 40
How to find half of 80
- 1Half means splitting 80 into 2 equal groups, so work out 80 ÷ 2.
- 280 is 8 tens. Half of 8 tens is 4 tens.
- 34 tens is 40, so half of 80 is 40.
Check it: put the two halves back together and you get 40 + 40 = 80.
Halving the numbers near 80
| Number | Half of it |
|---|---|
| Half of 76 | 38 |
| Half of 78 | 39 |
| Half of 80 (this page) | 40 |
| Half of 82 | 41 |
| Half of 84 | 42 |
Halving is the same as dividing by 2, and the same as sharing 80 equally between two people. It is also how you undo doubling: 40 doubled is 80. Practise it below — the lesson has 5 problems and gives you the answer the moment you try.
Lesson 80 of 84 · Half
Practise halving 80
Work through halving 80 yourself. Halving the tens and the ones separately makes any two-digit number easy.
Ready?
Half of 80
Slice it fair. Share it right. Every crumb counts.
Full screen — no distractions
Half of 80 — common questions
What is half of 80?
Half of 80 is 40. Halving means splitting a number into two equal groups, so half of 80 is 80 ÷ 2 = 40, and 40 + 40 = 80.
How do you work out half of 80?
Split 80 into tens and ones, halve each part, then add them back together. 80 halves to 40 and 0 halves to 0, and 40 + 0 = 40.
Is 80 an even number?
Yes. 80 ends in 0, so it is even, which is why it halves to the whole number 40.
What is 80 divided by 2?
80 ÷ 2 = 40. 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.