SME
Grade 3 Math · Problem type
Add and subtract liquid volume
Use this for liters: “3 L in the jug, pour in 4 L. How much now?”
Diagram
3 L + 4 L = 7 L in all
This is an example. Type your own values to start a new problem.
In the jug (L)
+
Poured in (L)
=
Total (L)
Formulas
3 + 4 = 7
In the jug + poured in = total
Assumptions
•
Liquid volume is how much a container holds. Liters (L) measure it.
•
Read the level against the marks on the side.
•
Missing an amount? Take the other one away from the total.
Step-by-step
WE KNOW
In the jug: 3 L
Poured in: 4 L
FIND
total
Step 1 · Find total
3 + 4 = ?
In the jug + poured in = total
Add the water in the jug and the water poured in.
Total = 7 L
Check
Put the numbers back in. Both sides should match.
3 + 4 = 7 ✓
Topic check
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