Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3)
- 7.3, 7.4, ____, 7.6
- 1.7, ____, 2, 2.15
- 6.1, 6.5, 6.9, _____
(a)
Common difference
= 7.4 - 7.3
= 0.1
Number
= 7.4 + 0.1
= 7.5
(b)
Common difference
= 2.15 - 2
= 0.15
Number
= 1.7 + 0.15
= 1.85
(c)
Common difference
= 6.9 - 6.5
= 0.4
Number
= 6.9 + 0.4
= 7.3
Answer(s): 7.5, 1.85, 7.3