Foundation Mathematics Primary 3 Whole Numbers

What is the missing number in this pattern? 4 800, 4 600, 4 400, 4 200, ___, 3 800

A 4 000
B 3 900
C 4 100
D 3 950
Show Worked Solution

Worked Solution

Step 1: Find the common difference. 4 800 - 4 600 = 200 4 600 - 4 400 = 200 4 400 - 4 200 = 200 Step 2: The pattern decreases by 200 each time. Step 3: 4 200 - 200 = 4 000. Verify: 4 000 - 200 = 3 800. Check! Answer: 4 000.

Correct answer: 4 000

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