Advanced Mathematics Primary 3 Addition and Subtraction

A shopkeeper had 1,200 items in stock. He sold 397 items on Monday and 486 items on Tuesday. How many items were left?

A 317
B 327
C 307
D 337
Show Worked Solution

Worked Solution

Step 1: Total items sold = 397 + 486. Step 2: 397 + 486: Add 397 + 400 = 797, then 797 + 86 = 883. Step 3: Items left = 1200 - 883. Step 4: 1200 - 883: 1200 - 900 = 300, then add back 17: 300 + 17 = 317. 317 items were left.

Correct answer: 317

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