Full Grade 4 test

For a two-digit multiplier, the first row multiplies by ones and the second by tens. Shift the second row one column left, then add both rows.

“Older than” means the age must be above the stated limit. The limit age itself is not allowed.

Add 1 to find the smallest whole-number age allowed. For example, someone older than 18 must be at least 19 when age is counted in whole years.

A discount reduces the price. First find the discount amount: divide the original price by 100 and multiply by the discount percentage.

Then subtract the discount from the original price. For example, 25% off €40 means a discount of €10 and a new price of 40 − 10 = €30.

A line of symmetry divides a shape into mirrored halves. Imagine folding along a possible line: the two sides must match.

With only addition and subtraction, work from left to right. Subtract the second number from the first, then add the third.

For example, 350 − 120 + 40 = 230 + 40 = 270. Do not add the second and third numbers before subtracting.

Find the starting column and row. Moving right changes the column; moving down changes the row. Count transitions between cells.

Use the tens digit. If it is below 5, choose the lower multiple of 100; if it is 5 or more, choose the higher multiple. The last two digits become zeros.

Find the shortfall and divide by the weekly savings. If any shortfall remains, allow one more full week.

One day is 24 hours. Multiply the number of days by 24, then add the remaining hours.