Complete the following number patterns.
- 737, 670, 603, , 469
- 41, 51, 62, 74, .
- 84, , 101, 105, 107
(a)
737 - 670 = 67
670 - 603 = 67
603 - 67 = 536
Pattern: Keep subtracting 67 from left to right.
(b)
51 - 41 = 10
62 - 51 = 11 (1 is added to 10)
74 - 62 = 12 (1 is added to 11)
12 + 1 = 13
74 + 13 = 87
Pattern: Keep adding 1 to the previous added number from left to right.
(c)
107 - 105 = 2
105 - 101 = 4
101 - 6 = 95
95 - 11 = 84
Pattern: Keep subtracting 2 from the previous subtracted number from right to left.
Answer(s): (a) 536; (b) 87; (c) 95
