Åk 6–9
 
English/Soomaali

6.1 Repeated Addition
You should know by know that multiplication is also repeated addition.

3 · 4 = 4 + 4 + 4 = 12

If you multiply a whole number with a decimal number, you do so in exactly the same manner.

3 · 0.8 = 0.8 + 0.8 + 0.8 = 2.4



Here is an everyday example:

Mirjam runs four days a week.  Every practice she runs 0.5 mil (Swedish mil = 10 kilometers).  How far has she run during one week?

0.5 mil + 0.5 mil + 0.5 mil + 0.5 mil = 4 · 0.5 mil = 2 mil