Question

Which decimal is equivalent to 6×100+7×10+4×1/10+8×1/1,000​

Answer 1

The answer is 670.408, because 6x100=600, 7x10=70, 4x1/10 as a decimal is 0.4, 8x1/1,000 as a decimal is 0.008. Then, you add all of those
`600+70+0.4+0.008=670.408`.