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Maths · Grade 3 · Set B
Read the jug, read the scale
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B
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Goal: 15 min
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Remember: Read the mark the top reaches. Liters measure how much a jug holds. Grams and kilograms measure how heavy. A level balance means the same mass.

Read the mark

1
The bars show how many liters are in each jug. How many liters are in Jug D?
2
How many liters do the two jugs hold together?
3
The dot shows where a scale pointer stops. How many kilograms does the box weigh?
4
The dot shows where a scale pointer stops. How many grams is it?
5
The dot shows where a scale pointer stops. How many kilograms is it?
6
The pointer is at the dot. About how many kilograms is it?
about 40 kgabout 60 kgabout 80 kg

Balance, add, take away and share

7
✏️Which unit is best to tell how heavy a pencil is?
literskilogramsgrams
8
🛁Which unit tells how much water a bathtub holds?
litersgrams
9
Each apple has a mass of 200 g. The balance is level. What is the mass of the melon, in grams?
10
A bag of rice is 3 kg. How many kilograms are 4 bags?
11
A tank holds 15 L in all. It has 8 L in it so far. How many more liters fit?
12
4 equal bags weigh 2000 g in all. How many grams is each bag?
13
The balance is level. So the feathers and the rock have the same mass.
TrueFalse
14
Pip says 500 g is more than 1 kg because 500 is bigger than 1. Write why Pip is not right.
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Answer key · Set B
Read the jug, read the scale
19 The top of Jug D's bar is level with the mark 9.
214 5 L + 9 L = 14 L.
36 The pointer is on the mark 6, so it is 6 kg.
4900 Each step is 100 g. The pointer is one step before 1000, so it is 900 g.
535 Each step is 5 kg. The pointer is halfway between 30 and 40, so it is 35 kg.
6about 60 kg The dot is just past 60 and far from 40 and 80, so it is about 60 kg.
7grams A pencil is light, so grams fit. Liters measure liquid.
8liters Liters measure how much liquid something holds.
91000 The melon balances 5 apples. 200 × 5 = 1000 g.
1012 3 + 3 + 3 + 3 = 12 kg.
117 15 - 8 = 7 L.
12500 2000 g shared into 4 equal bags: 2000 / 4 = 500 g.
13True A level balance means both pans have the same mass, even if they look different.
14Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.