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)
- 37
- 465
- 685
- 4139
(a)
37 (=) 40
(b)
465 (=) 470
(c)
685 (=) 690
(d)
4139 (=) 4140
Answer(s): 40, 470, 690, 4140