KS2 Primary Maths Age 13-17 - Measure: Perimeters and Areas - Explained

What are the dimensions of the rectangular tile if it is 3 cm longer and 2 cm narrower than a 20 cm by 20 cm square tile?

• 23 cm by 18 cm

• 22 cm by 17 cm

• 21 cm by 19 cm

• 24 cm by 16 cm

How do you calculate the area of a square tile with side length 20 cm?

• 20 + 20

• 20 / 20

• 20 - 20

• 20 * 20

What is the area of a rectangular tile with dimensions 23 cm by 18 cm?

• 396 cm²

• 420 cm²

• 400 cm²

• 414 cm²

What is the difference in area between the square tile and the rectangular tile?

• 16 cm²

• 14 cm²

• 10 cm²

• 20 cm²

What common mistake did students make when calculating the dimensions of the rectangular tile?

• They added 3 and subtracted 2.

• They subtracted both 3 and 2.

• They subtracted 3 and added 2.

• They added both 3 and 2.