Worksheet generator

Pick what you want, print the page. The answer key comes with it, on its own sheet, and it tells you the mistake behind every wrong choice — not just which letter is right.

Level

Point value

Strand

How many

Figures

5 on the sheet, 27 match these filtersReshuffle Start overseed 1

This exact URL always produces this exact sheet — bookmark it and the answer key will still match next term. Print with your browser; the controls and the site navigation are left off the page.

Math Kangaroo practice

Name: ______________________Date: ____________5 questions · 15 points

1.The first three patterns are made of dots and follow a rule. How many dots will the fifth pattern have?[3]
Text description of the figure
Three dot patterns in a row. The first has one column of 2 dots with a single dot above it, making 3. The second has two columns of 2 dots with a single dot above, making 5. The third has three columns of 2 dots with a single dot above, making 7.
- A9
- B10
- C11
- D13
- E14
2.Toma spent 4 euros, then spent half of what was left, and now has 6 euros. How much did she start with?[3]
- A10
- B14
- C16
- D20
- E24
3.How many of the numbers from 1 to 20 are not multiples of 3?[3]
- A6
- B13
- C14
- D17
- E20
4.A cafe offers 3 main courses and 2 puddings. How many different two-course meals can be ordered?[3]
Text description of the figure
A tree diagram. One starting point branches into three main courses, and each of those branches into two puddings, giving six paths in all.
- A2
- B5
- C6
- D9
- E12
5.A rectangle has a perimeter of 20 cm. One of its sides is 6 cm. What is its area in square centimetres?[3]
- A14
- B24
- C40
- D60
- E96

Kangaroo Atlas · https://kangaroo-atlas.vercel.app · seed 1 · CC BY-NC-SA 4.0 · Independent project, not affiliated with Math Kangaroo in USA, NFP.

Answer key — Math Kangaroo practice

Each wrong choice carries the thinking that produces it. When a student picks C, this is what they were doing.

1.C — 11KA-0008Continuing a visual pattern
- AI continued the pattern to the fourth stage and stopped one stage early.
- BI counted only the columns of two and forgot the single dot sitting on top of each pattern.
- DI continued the pattern one stage too far and gave the sixth pattern instead of the fifth.
- EI doubled the third pattern's count, assuming the pattern doubles rather than grows by a fixed amount.
2.C — 16KA-0050Working backwards
- AI added the 4 and the 6 and stopped, forgetting to undo the halving.
- BI doubled the 6 first and then added the 4, reversing the steps in the wrong order.
- DI doubled the total at the end rather than doubling only the amount left after the first spend.
- EI doubled twice because spending half felt like it needed undoing more than once.
3.C — 14KA-0051Complementary counting
- AI counted the multiples of 3 and gave that instead of the numbers that are not multiples.
- BI counted 21 as a multiple of 3 inside the range, so I removed one too many.
- DI removed only the multiples of 3 that are also even, so I subtracted three instead of six.
- EI gave the size of the whole range and forgot to remove anything at all.
4.C — 6KA-0067Tree diagrams
- AI counted the puddings only and forgot that the main course is also a choice.
- BI added the number of mains to the number of puddings instead of multiplying them.
- DI used three puddings as well as three mains, without reading how many puddings there are.
- EI doubled the answer, as if the order of the two courses made a different meal.
5.B — 24KA-0083Perimeter and area of rectilinear shapes
- AI subtracted 6 from 20 and gave that, which is neither a side nor an area.
- CI took the other side to be 20 minus 6 divided by 2, forgetting there are two sides of each length.
- DI multiplied the perimeter by half the known side instead of finding the missing side first.
- EI used 16 as the other side, taking 20 minus 6 plus 2 rather than working from the perimeter properly.

Loading…