Example 1 · level 1
Fill in the missing number: 6, __, 16, 21, 26
Show solution
- The jump is +5.
- 6 + 5 = 11.
Answer: 11
Find the jump between numbers. Use the same jump to fill the gap.
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Fill in the missing number: 6, __, 16, 21, 26
Answer: 11
Fill in the missing number: 44, __, 36, 32, 28
Answer: 40
Fill in the missing number: 1,900, 1,800, __, 1,600, 1,500
Answer: 1,700