Complete the following number patterns.
- 804, 710, 616, , 428
- 34, 44, 55, 67, .
- 150, , 170, 177, 182
(a)
804 - 710 = 94
710 - 616 = 94
616 - 94 = 522
Pattern: Keep subtracting 94 from left to right.
(b)
44 - 34 = 10
55 - 44 = 11 (1 is added to 10)
67 - 55 = 12 (1 is added to 11)
12 + 1 = 13
67 + 13 = 80
Pattern: Keep adding 1 to the previous added number from left to right.
(c)
182 - 177 = 5
177 - 170 = 7
170 - 9 = 161
161 - 11 = 150
Pattern: Keep subtracting 2 from the previous subtracted number from right to left.
Answer(s): (a) 522; (b) 80; (c) 161
