130k views
4 votes
8.21+3.89=______+4.00

2 Answers

5 votes
You know that on the left : 8,21 + 3,89 = 12,1

So, we can guess that on the right the calcul must give 12,1 also.

So 12,1 - 4,00 = 8,1.

In short, the answer would be : 8,21 + 3,89 = 8,1 + 4,00.

Hope this helps !

Photon
User Elif
by
6.3k points
3 votes
8.21+3.89=____+4.00
12.10=____+4.00
-4.00 both sides

8.10
User Havchr
by
6.5k points
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