Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3)
- 87 tens 5 ones = _____
- 98 hundreds 78 ones = _____
- 4 thousands 129 tens = _____
(a)
87 tens 5 ones
= 87 x 10 + 5 x 1
= 870 + 5
= 875
(b)
98 hundreds 78 ones
= 98 x 100 + 78 x 1
= 9800 + 78
= 9878
(c)
4 thousands 129 tens
= 4 x 1000 + 129 x 10
= 4000 + 1290
= 5290
Answer(s): 875, 9878, 5290