Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 2387 = 2000 + _______ + 80
- 9316 = 300 + _______ + 10
- 40 - 2 x 7 = _______
- 40 + 20 ÷ 10 = _______
(a)
2387 = 2000 + _______ + 80
2000 + 80 = 2080
2387 - 2080 = 307
(b)
9316 = 300 + _____ + 10
300 + 10 = 310
9316 - 310 = 9006
(c)
40 - 2 x 7
= 40 - 14
= 26
(d)
40 + 20 ÷ 10
= 40 + 2
= 42
Answer(s): 307, 9006, 26, 42