1st Grade Math · Half
Half of 84
Half of 84 is 42
84 ÷ 2 = 42
How to find half of 84
- 1Half means splitting 84 into 2 equal groups, so work out 84 ÷ 2.
- 2Split 84 into its tens and its ones: 80 and 4.
- 3Halve each part on its own — half of 80 is 40, and half of 4 is 2.
- 4Add the two halves back together: 40 + 2 = 42.
Check it: put the two halves back together and you get 42 + 42 = 84.
Halving the numbers near 84
| Number | Half of it |
|---|---|
| Half of 80 | 40 |
| Half of 82 | 41 |
| Half of 84 (this page) | 42 |
Halving is the same as dividing by 2, and the same as sharing 84 equally between two people. It is also how you undo doubling: 42 doubled is 84. Practise it below — the lesson has 5 problems and gives you the answer the moment you try.
Lesson 84 of 84 · Half
Practise halving 84
Work through halving 84 yourself. Halving the tens and the ones separately makes any two-digit number easy.
Ready?
Half of 84
Half of half is a quarter. Prove it with cake.
Full screen — no distractions
Half of 84 — common questions
What is half of 84?
Half of 84 is 42. Halving means splitting a number into two equal groups, so half of 84 is 84 ÷ 2 = 42, and 42 + 42 = 84.
How do you work out half of 84?
Split 84 into tens and ones, halve each part, then add them back together. 80 halves to 40 and 4 halves to 2, and 40 + 2 = 42.
Is 84 an even number?
Yes. 84 ends in 4, so it is even, which is why it halves to the whole number 42.
What is 84 divided by 2?
84 ÷ 2 = 42. 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.