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)
- 47
- 224
- 900
- 3515
(a)
47 (=) 50
(b)
224 (=) 220
(c)
900 (=) 900
(d)
3515 (=) 3520
Answer(s): 50, 220, 900, 3520