Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 400 + 50 + 4 = _____
- 6000 + 700 + 70 = _____
- 1000 + 400 + 2 = _____
- 1000 + 800 + 40 = _____
(a)
400 + 50 + 4 = 454
(b)
6000 + 700 + 70 = 6770
(c)
1000 + 400 + 2 = 1402
(d)
1000 + 800 + 40 = 1840
Answer(s): 454, 6770, 1402, 1840