问题 解答题 直接写得数.38×49=512-15=45÷80%=0.125×32=1÷49=(34+15)×40=811÷8=4-135-0.4=(16+19)×36=456-178-1.25= 答案 38×49=16,512-15=5.3,45÷80%=1,0.125×32=4,1÷49=214,(34+15)×40=38,811÷8=111,4-135-0.4=2,(16+19)×36=10,456-178-1.25=11724.