Complete the following number patterns.
- 749, 656, 563, , 377
- 41, 46, 52, 59, .
- 77, , 90, 95, 98
(a)
749 - 656 = 93
656 - 563 = 93
563 - 93 = 470
Pattern: Keep subtracting 93 from left to right.
(b)
46 - 41 = 5
52 - 46 = 6 (1 is added to 5)
59 - 52 = 7 (1 is added to 6)
7 + 1 = 8
59 + 8 = 67
Pattern: Keep adding 1 to the previous added number from left to right.
(c)
98 - 95 = 3
95 - 90 = 5
90 - 7 = 83
83 - 6 = 77
Pattern: Keep subtracting 2 from the previous subtracted number from right to left.
Answer(s): (a) 470; (b) 67; (c) 83
