Full Grade 3 test

It is easiest to work in cents. Multiply the price of one notebook by the number bought, add the eraser price, then subtract the total cost from the amount paid. Finally write the result in euros and cents.

Find the neighbouring multiples of one thousand and compare the distances to them. If the distances are equal, choose the higher one.

Start at the end of the flowchart. Reverse the order and use inverse operations: undo subtraction with addition and multiplication with division. Check by working forwards.

If there are not enough ones, exchange 1 ten for 10 ones. After subtracting the ones, use the tens digit reduced by 1.

A triangle is classified by its greatest angle.

• If one angle is exactly 90°, the triangle is right-angled.
• If one angle is greater than 90°, the triangle is obtuse-angled.
• If all three angles are less than 90°, the triangle is acute-angled.

Find the greatest given angle and use these conditions to select the triangle type.

Multiplication adds equal groups. For example, 6 × 7 means six groups of seven.

Use the times table or count 7, 14, 21, 28, 35, 42. You can swap the factors: 6 × 7 = 7 × 6.

Multiply each digit by the place value above it, then add the parts. A zero means there are no units of that place.

Multiplying any number by 0 gives 0. Each group contributes no objects.

For example, 9 × 0 = 0. This differs from multiplying by 1, which leaves the number unchanged.

A triangle is classified by comparing the lengths of all three sides.

• If all three sides are equal, the triangle is equilateral.
• If exactly two sides are equal, the triangle is isosceles.
• If all three side lengths are different, the triangle is scalene.

Compare the three given lengths and select the matching type.

Imagine a segment through the centre from one side of the circle to the other. The centre splits it into two equal parts.

To find the stated fraction of a number, first find the size of one equal part and then take the required number of parts.

1. Divide the whole number by the denominator of the fraction.
2. Multiply the size of one part by the numerator.

Formula: fraction of a number = whole number ÷ denominator × numerator.

Sharing the cards equally gives every child the same amount. Divide the total number of cards by the number of children.

Multiplying one child’s amount by the number of children must give all the cards again.