Foundation Mathematics Primary 3 Addition and Subtraction

What is 501 - 198 calculated mentally?

A 293
B 303
C 313
D 297
Show Worked Solution

Worked Solution

Step 1: Round 198 up to 200 (add 2 to round). Step 2: Subtract: 501 - 200 = 301. Step 3: You subtracted 2 more than needed, so add 2 back: 301 + 2 = 303. 501 - 198 = 303.

Correct answer: 303

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