1st Grade Math · Half
Half of 43
Half of 43 is 21½
43 ÷ 2 = 21½
43 is an odd number, so it does not split into two equal whole groups — 21½ means 21 and a half.
How to find half of 43
- 1Half means splitting 43 into 2 equal groups, so work out 43 ÷ 2.
- 243 is an odd number, so it will not split into two equal whole groups — one group always ends up with one more.
- 3Put 21 in each group and there is 1 left over. Split that last one in half too.
- 4So half of 43 is 21½ — 21 and a half. The even numbers either side, 42 and 44, halve to 21 and 22.
Check it: put the two halves back together and you get 21½ + 21½ = 43.
Halving the numbers near 43
| Number | Half of it |
|---|---|
| Half of 38 | 19 |
| Half of 40 | 20 |
| Half of 42 | 21 |
| Half of 44 | 22 |
| Half of 46 | 23 |
Halving is the same as dividing by 2. Odd numbers like 43 always leave one over, so their halves end in a half. Practise it below — the lesson has 5 problems and gives you the answer the moment you try.
Lesson 43 of 84 · Half
Practise halving 43
Work through halving 43 yourself. Odd numbers always have one left over to split.
Ready?
Half of 43
Turn the recipe into the answer.
Full screen — no distractions
Half of 43 — common questions
What is half of 43?
Half of 43 is 21½, which is 21 and a half. 43 is an odd number, so it does not split into two equal whole groups.
How do you work out half of 43?
Share 43 into two groups. Each group gets 21 with 1 left over, and that last one splits in half — so half of 43 is 21½.
Is 43 an even number?
No. 43 ends in 3, so it is odd — and odd numbers never halve into two equal whole groups.
What is 43 divided by 2?
43 ÷ 2 = 21½. 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.