Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 8 thousands + 21 = _______
- 5 tens - 1 = _______
- 7 thousands + 4 thousands = _______
- 80 thousands - 60 thousands = _______
(a)
8 thousands + 21
= 8000 + 21
= 8021
(b)
5 tens - 1
= 50 - 1
= 49
(c)
7 thousands + 4 thousands
= 7000 + 4000
= 11000
(d)
80 thousands - 60 thousands
= 80000 - 60000
= 20000
Answer(s): 8021, 49, 11000, 20000