用竖式计算，带★号的要验算．380×6 906÷3 3.27+2.86 8.75-3.28 ★857÷7

Question

用竖式计算，带★号的要验算．380×6 906÷3 3.27+2.86 8.75-3.28 ★857÷7 ★48×56．

Answer 1

380×6=2280


8.75-3.28=5.47


906÷3=302

857÷7=122…3

验算：

3.27+2.86=6.13

48×56=2688

验算：