Skip to main content

Atlas
Problems
Diagnostic
Mock
Papers
About

The whole Atlas

Number & Arithmetic15
Counting18
Geometry & Visualization18
Logic & Deduction11
Patterns & Sequences7
Modeling & Word Problems10
Contest Craft12

Loading…

About
Sign in
Worksheets
Privacy
Terms
License
Contact
GitHub

Code is MIT. Problems, skills, and explanations are CC BY-NC-SA 4.0. Practice never requires an account and nothing here is paywalled.

Independent project. Not affiliated with or endorsed by Math Kangaroo in USA, NFP.

Home
Atlas
Problems
Papers

Browse the problems

177 problems, every one written from scratch, every wrong answer carrying the mistake that produces it. 708 explanations in all.

Level

1–2
3–4
5–6
7–8
9–10
11–12

Point value

3 pt
4 pt
5 pt

Strand

NUMNumber & Arithmetic
CNTCounting
GEOGeometry & Visualization
LOGLogic & Deduction
PATPatterns & Sequences
MODModeling & Word Problems
CFTContest Craft

Sort

Id
Hardest first
Newest

55 problemsClear all filters

KA-0119
3 points, difficulty 1 of 3Level 3–4not yet calibrated
Bo has 24 marbles and gives a third of them to Ana. How many more marbles does Bo have than Ana now?
CFT-01Find what is actually being askedalso NUM-09
KA-0120
3 points, difficulty 1 of 3Level 3–4not yet calibrated
A cat walks 3 m north, then 4 m east, then 3 m south. How many metres is it now from where it started?
CFT-02Draw the diagramalso GEO-02
KA-0124
3 points, difficulty 1 of 3Level 5–6not yet calibrated
Which of these is closest to the number of seconds in one day?
CFT-06Estimate to the nearest choicealso MOD-07, NUM-12
KA-0127
3 points, difficulty 1 of 3Level 3–4not yet calibrated
One minute is left. Three questions have no answer written and you cannot do any of them. Nothing is taken off for a wrong answer. What should you do?
CFT-09Never leave a blank — there is no penaltyalso CFT-08
KA-0141
3 points, difficulty 1 of 3Level 5–6not yet calibrated
Which of these fractions lies between one third and one half?
NUM-13Number lines and betweennessalso NUM-09
KA-0142
3 points, difficulty 1 of 3Level 5–6not yet calibrated
Which capital letter, printed plainly, has both a horizontal and a vertical line of symmetry?
GEO-08Line and rotational symmetryalso GEO-09
KA-0143
3 points, difficulty 1 of 3Level 5–6not yet calibrated
How many three-digit numbers can be written using only the digits 1 and 2, with repeats allowed?
CNT-01Systematic listingalso CNT-03, NUM-01
KA-0144
3 points, difficulty 1 of 3Level 5–6not yet calibrated
Three more than twice a number is 19. What is the number?
MOD-01Translating a sentence into an equationalso LOG-08
KA-0145
3 points, difficulty 1 of 3Level 5–6not yet calibrated
A counter sits at the point (3, 5) on a grid. It moves 4 squares right and 2 squares down. Where is it now?
GEO-02Grid coordinates and lattice reasoningalso GEO-09
KA-0146
3 points, difficulty 1 of 3Level 5–6not yet calibrated
Suppose it is true that some birds cannot fly. Which of these must also be true?
LOG-01Reading a logical statement preciselyalso LOG-09
KA-0151
3 points, difficulty 1 of 3Level 7–8not yet calibrated
A bread recipe uses flour and sugar in the ratio 5 to 3. The two together weigh 320 grams. How much of that is flour?
NUM-11Ratio as parts of a wholealso CFT-01, CFT-10
KA-0152
3 points, difficulty 1 of 3Level 7–8not yet calibrated
In a triangle, one angle measures 30 degrees. Of the other two angles, one is exactly twice the other. What is the largest angle in the triangle?
GEO-05Angles on lines, in triangles, in polygonsalso MOD-01, CFT-02

1
3
4
5

Showing 37–48 of 55

Browse the problems — Kangaroo Atlas