Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 70 x 3 = _____
- 687 x 2 = _____
- 2397 x 2 = _____
- 19921 x 2 = _____
(a)
70 x 3 = 210
(b)
687 x 2 = 1374
(c)
2397 x 2 = 4794
(d)
19921 x 2 = 39842
Answer(s): 210, 1374, 4794, 39842