来自任国珍的问题
【口算题:1.53+37=7200-1800=140×6=0.66+4.4=0.5-0.07=0.15×0.4=0.36÷0.9=3÷7=1÷0.25=】
口算题:
1.53+37=7200-1800=140×6=0.66+4.4=0.5-0.07=0.15×0.4=0.36÷0.9=3÷7=1÷0.25=


【口算题:1.53+37=7200-1800=140×6=0.66+4.4=0.5-0.07=0.15×0.4=0.36÷0.9=3÷7=1÷0.25=】
口算题:
1.53+37=7200-1800=140×6=0.66+4.4=0.5-0.07=0.15×0.4=0.36÷0.9=3÷7=1÷0.25=
1.53+37=38.53;7200-1800=5400;
140×6=840;
0.66+4.4=5.06;
0.5-0.07=0.43;
0.15×0.4=0.6;
0.36÷0.9=0.4;
3÷7=37