w8.4

Front

W8.4

Calculate:

847.8 – 0.34

(without a calculator)

Back

Hint:

you can add a zero in the hundredth column for 847.8 to have you numbers lining up nicely in a column. You can also add zeros in front of the unit for 0.34.

The most important bit is to align your decimal points.

therefore we have:

8 4 7 . 8 0

• - 0 0 0 . 3 4

Front

answer:

847.46

Back