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Mathematics is the door and key to the sciences. ~ Roger Bacon

Mathematics is the queen of the sciences and number theory is the queen of mathematics. ~ Gauss

When you can measure what you are talking about and express it in numbers, you know something about it. ~ Lord Kelvin

Pure mathematics is, in its way, the poetry of logical ideas. ~Albert Einstein

The advancement and perfection of mathematics are intimately connected with the prosperity of the State. ~Napoleon

Sample SMaths Challenge Question for Category Primary/Year 3

### Answer with solution:

Steven had just enough money to buy 11 toy airplanes. However, he bought only 4 toy airplanes and had RM119 left. How much money did he have at first?

a) RM197 c) RM130

b) RM187 d) RM170

### Difference in number of toy airplanes

### = 11 - 4

### = 7

### 7 toy airplanes → RM119

### 1 toy airplane → RM119 ÷ 7 = RM17

### 11 toy airplanes → 11 x RM17 = RM187

### Steven had RM187 at first.