Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3)
- 7.6, 7.7, ____, 7.9
- 2.3, ____, 2.6, 2.75
- 1.4, 1.8, 2.2, _____
(a)
Common difference
= 7.7 - 7.6
= 0.1
Number
= 7.7 + 0.1
= 7.8
(b)
Common difference
= 2.75 - 2.6
= 0.15
Number
= 2.3 + 0.15
= 2.45
(c)
Common difference
= 2.2 - 1.8
= 0.4
Number
= 2.2 + 0.4
= 2.6
Answer(s): 7.8, 2.45, 2.6