Mass: reading kitchen, bathroom and balance scales

Reading kitchen, bathroom and balance scales correctly. Read one part at a time and tap “I know this”. Then test yourself in the quiz.

Your progress0 of 2

Kinds of scales

Scale	What for?
kitchen scale	small masses, mostly in grams: flour, butter
bathroom scale	people, in kilograms
balance scale	compares two masses: the heavier side goes down

Tap when you could tell someone without looking.

Choose two numbered marks next to each other, e.g. 0 g and 100 g.
Count the spaces between them (not the lines): 4 spaces → each mark is 100 ÷ 4 = 25 g.
Count on from the last number before the pointer: 3 marks after 200 g → 200 + 75 = 275 g.

Bathroom scale: between 30 kg and 40 kg there are 10 spaces, so each mark is 1 kg. The pointer is 4 marks after 30: 34 kg.

Balance scale: 1 apple balances 3 blocks of 50 g each, so the apple has a mass of 3 × 50 = 150 g.

Tap when you could tell someone without looking.

Remember this: your summary

Write these points in your book. Read them again the night before the test.

Memory trick

Count the spaces, not the lines.

Flash cards · Tap to turn over

First say the answer yourself, then turn the card over.

Now the real quiz!

The quiz has many more questions on this topic. Every question shows straight away whether you are right and explains why.

For parents

Let your child work the examples on paper and explain them to you.
The ticks (“I know this”) are saved on this device only. We never ask for names or emails.

Follows CAPS for Grade 4 Mathematics. Always check your teacher’s notes and textbook too.