Question

九又7/8×8加八又6/7×7加七又5/6×6加六又4/5×5等于多少

九又7/8×8加八又6/7×7加七又5/6×6加六又4/5×5等于多少

Answer 1

=9*7+8*6+7*5+6*4
=63+48+35+24
=170

Answer 2

原式=(9x8+7/8x8)+(8x7+6/7x7)+(7x6+5/6x6)+(6x5+4/5x5)
=(72+7)+(56+6)+(42+5)+(30+4)
=222