Study the number pattern carefully.
- What is the missing number in the 11th pattern?
- What is the missing number in the 25th pattern?
- If this number pattern goes on, which pattern number will give you 788?
(a)
Pattern 1: 1
2 + 4 = 5
Pattern 2: 2
2 + 4 = 8
Pattern 3: 3
2 + 4 = 13
Pattern 4: 4
2 + 4 = 20
Formula:
Number for each pattern = Pattern number
2 + 4
Missing number in 11th pattern
= 11
2 + 4
= 125
(b)
Missing number in 25th pattern
= 25
2 + 4
= 629
(c)
Pattern number
2 + 4 = 788
Pattern number
2 = 788 - 4 = 784
Pattern number
= √784
= 28
Answer(s): (a) 125; (b) 629; (c) 28