Type the missing number in this sequence: 117, 115, 113, 111, 109, _____, 105

Observe and Calculate: We observe that the sequence is decreasing by 2 each time. To find the missing number, we subtract 2 from the last known number in the sequence. Calculation: 109 - 2 = 107Check Pattern: We check if the number we found fits the pattern of the sequence by adding 2 to see if we get the next known number in the sequence. Calculation: 107 + 2 = 109Verify Sequence: We verify that the number following our found number is indeed the next number in the sequence. Calculation: 107 + 2 = 109, which matches the known number after the missing number in the sequence.

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Type the missing number in this sequence: $\newline$ $117,\;115,\;113,\;111,\;109,\;\_,\;105$

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Math Problems

Grade 7

Sequences: mixed review

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Q. Type the missing number in this sequence:

\newline

117,\;115,\;113,\;111,\;109,\;\_,\;105

Observe and Calculate: We observe that the sequence is decreasing by $2$ each time. To find the missing number, we subtract $2$ from the last known number in the sequence. $\newline$ Calculation: $109 - 2 = 107$
Check Pattern: We check if the number we found fits the pattern of the sequence by adding $2$ to see if we get the next known number in the sequence. $\newline$ Calculation: $107 + 2 = 109$
Verify Sequence: We verify that the number following our found number is indeed the next number in the sequence. $\newline$ Calculation: $107 + 2 = 109$ , which matches the known number after the missing number in the sequence.