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)
- 28
- 386
- 642
- 1295
(a)
28 (=) 30
(b)
386 (=) 390
(c)
642 (=) 640
(d)
1295 (=) 1300
Answer(s): 30, 390, 640, 1300