Deciding whether a number is even or odd

Difficulty Standard · Set 399sh8

Fill in what you can and press Check. Nothing you type is sent anywhere.

1
Is 381 even or odd?
2
Is 389 even or odd?
3
Is 564 even or odd?
4
Is 356 even or odd?
5
Is 556 even or odd?
6
Is 180 even or odd?
7
Is 458 even or odd?
8
Is 789 even or odd?
9
Is 743 even or odd?
10
Is 715 even or odd?
11
Is 122 even or odd?
12
Is 288 even or odd?
13
Is 196 even or odd?
14
Is 886 even or odd?
15
Is 292 even or odd?
16
Is 187 even or odd?
17
Is 469 even or odd?
18
Is 872 even or odd?
19
Is 242 even or odd?
20
Is 205 even or odd?

What is in this set

The numbers in this set run from 103 to 994.
52% of them are even.
48% of them are odd.
A careful solution takes 1 written step on average.
The mistake this set invites most often, in 52% of the problems: only the last digit decides.
Answers are a short answer exactly as the problem asks for it.

Drawing 240 problems from this page produced 207 different ones, 86% — so a sheet of 20 is a new sheet almost every time.

The same skill, harder or easier

Standard103–994; 52% are even.

We would put this in front of a grade 2 class. That is our judgement, not a standard, and it is printed here so you can disagree with it. Everything else we put in that year.