ASMO Mathematics 2022 — Primary 3 / Grade 3

Find A + B in the vertical subtraction A6 − 3B = 54.

What is the greatest integer value of A for 42 + A < 98?

There are 45 candies in a basket. What is the fewest candies to remove so the remainder can be divided equally among seven people?

Arrange classes A, B and C by student count from least to greatest: A has more than B; A has more than C; C has fewer than B.

Find 21+22+23+24+25+26+27+28+29+30.

Find the missing number in 1, 6, 11, 16, ( ), 26.

How many rectangles are in the pictured three-strip rectangle?

Find the sum of the three pictured decimals 0.2, 0.3 and 0.5.

Each cat has one mouth, two eyes and four legs. If there are thirteen mouths, how many legs are there?

A 10-metre rope is cut into pieces 2 metres long. How many cuts are needed?

After an older brother gives his younger brother 13 balloons, they have the same number. How many more did the older brother have at first?

Mother buys a dress for USD 40 and sells it for USD 60; she buys the same dress again for USD 65 and sells it for USD 80. What is the total profit?

Use the two balance pictures to determine how many hamsters weigh as much as two dogs.

Compute 1 + 2 − 3 + 4 + 5 − 6 + 7 + 8 − 9 + 10 + 11 − 12 + 13 + 14 − 15 + 16 + 17 − 18.

Boxes A and B hold 180 gifts in total. A holds four times as many as B. How many are in B?

Arthur has five bicycles and four cars. Two bicycles each have two additional small wheels attached. How many wheels altogether?

A handkerchief already has a button at each of its four corners. Xiaoli wants eight buttons on each side, counting corner buttons on both adjoining sides. How many more buttons are needed?

How many triangles are there in the pictured nested triangular figure?

Amy is 12, Lina 17 and Mike 19. In how many years will their ages total 69?

A kitten puts 22 fish in four baskets, with a different positive number of fish in each. What is the greatest possible number in one basket?