(7·5)=(7+5)-(7-5) 12-2 10(7.4)=(7+4)-(7-4) 11-3 8(7.5)-(7.4)10-82
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(7·5)=(7+5)-(7-5)
12-2
10
(7.4)=(7+4)-(7-4)
11-3
8
(7.5)-(7.4)
10-8
2