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5 votes
Expression that can be used to multiply 6 x 198 mentally

User Shadowwolf
by
8.4k points

2 Answers

3 votes
break it down
54
198
* 6
———
1188
(1*1000)*(1*100)*(8*10)*(8*1)=1188
User Deepsky
by
8.4k points
1 vote
Break it up. 6 x 100, 6 x 90, 6 x 8. 600+540+48 = 1188.
User Haltersweb
by
7.9k points