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)
- 99
- 391
- 678
- 3855
(a)
99 (=) 100
(b)
391 (=) 390
(c)
678 (=) 680
(d)
3855 (=) 3860
Answer(s): 100, 390, 680, 3860