ASMO Mathematics 2015 — Primary 3 / Grade 3

Calculate: 20.5 − 6.4 + 2.5 − 3.6 = ____.

Observe the pattern of shaded regions in figures 1, 2 and 4 below. Draw the shaded region of figure 3.

Find the pattern and fill in the blank in the third circle.

What is the sum of the largest two-digit number and the smallest four-digit number?

Calculate: 61 + 6 × 0 − 12 + 16 − 8 = ____.

Calculate: 85 + 34 − 25 × 2 + 51 = ____.

Draw a straight line across the face of the clock to separate it into two parts. The sum of the numbers in one part must equal twice the sum in the other part. More than one solution exists; draw just one line.

24 × 2 = □ ÷ 3. Fill the number in the box so that the equation is true.

Which of the following objects is different from the others? A, B, C, D or E?

1 July 2014 was Tuesday. What day of the week was 30 July 2014?

1, 4, 9, A, 25, 36, B. What is the difference between A and B?

I am reading a book. The product of the numbers on the two open pages is 110. What is the sum of these page numbers?

124 cookies are packed in boxes of 10 cookies. Each full box sells for RM4. The remaining cookies sell for RM0.50 each. What is the total selling price?

Reversing the digits of 121 leaves the number unchanged. What is the largest number between 200 and 300 with this property?

In the magic square below, the three rows, three columns and two diagonals all have the same sum. What is A × B?

Matthew, Phoebe and Olivia share RM360 in the ratio 2 : 3 : 1. How much does Phoebe receive?

An electronic watch displays the minutes as a two-digit number. How many two-digit displays have digits that differ by 1?

The diagram shows ? → add 10 → subtract 8 → multiply by 3 → 33. What number should replace ?

In a class of 40 students, 12 take swimming, 16 take singing, and 5 take both. How many take neither swimming nor singing?

Each small box in the figure is a rectangle. How many different rectangles can be traced?