2.5×32÷14+36÷21×2.5
=2.5×(16/7+12/7)
=2.5×4
=10
猜
2.5×32÷14+36÷21×2.5
=2.5×(16/7+12/7)
=2.5×(16+12)/7
=2.5×28/7
=2.5×4
=10.
2.5×32÷14+36÷21×2.5
=2.5×(32/14+36/21)
=2.5×(16/7+12/7)
=2.5×28/7
=2.5×4
=10
=2.5×(32÷2÷7+36÷3÷7)
=2.5×(16十12)÷7
=2.5×28÷7
=2.5×4
=10