Problem 4 answer key

The Chest Room Split

Grade 3 · Number and operations

MJ 3.4 · C2 · W2 Standard challenge · Moderate workload

About 4–10 minutes

2 jewels

Problem 4: The Chest Room Split

1. Share the ingots

Alex shares 48 ingots equally among 6 chests:

48 ÷ 6 = 8

There are 8 iron ingots in each chest. A multiplication check is 6 × 8 = 48.

2. Count what remains

Each of the 2 affected chests starts with 8 ingots. Alex takes 3 from each one:

8 − 3 = 5

There are 5 ingots left in each affected chest, so:

2 × 5 = 10

There are 10 iron ingots left altogether in the 2 affected chests.

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