Find the following values without a calculator.
Give your answers in this manner. (Eg 0.1, 0.2, 0.3)
- 2.7, 2.8, ____, 3
- 4.7, ____, 5, 5.15
- 4.3, 4.7, 5.1, _____
(a)
Common difference
= 2.8 - 2.7
= 0.1
Number
= 2.8 + 0.1
= 2.9
(b)
Common difference
= 5.15 - 5
= 0.15
Number
= 4.7 + 0.15
= 4.85
(c)
Common difference
= 5.1 - 4.7
= 0.4
Number
= 5.1 + 0.4
= 5.5
Answer(s): 2.9, 4.85, 5.5