Complete the following number patterns.
- 935, 877, 819, , 703
- 27, 34, 42, 51, .
- 161, , 177, 183, 187
(a)
935 - 877 = 58
877 - 819 = 58
819 - 58 = 761
Pattern: Keep subtracting 58 from left to right.
(b)
34 - 27 = 7
42 - 34 = 8 (1 is added to 7)
51 - 42 = 9 (1 is added to 8)
9 + 1 = 10
51 + 10 = 61
Pattern: Keep adding 1 to the previous added number from left to right.
(c)
187 - 183 = 4
183 - 177 = 6
177 - 8 = 169
169 - 8 = 161
Pattern: Keep subtracting 2 from the previous subtracted number from right to left.
Answer(s): (a) 761; (b) 61; (c) 169
