Find the following values without a calculator. Round off the following numbers to the nearest 10.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 86
- 277
- 811
- 2690
(a)
86 (=) 90
(b)
277 (=) 280
(c)
811 (=) 810
(d)
2690 (=) 2690
Answer(s): 90, 280, 810, 2690