①10÷0.05= ②910÷70= ③30× = ④ ⑤3.48+6.52= ⑥
1.8x+x=42
6+0.3x=69
×33+66×62.5%+0.625 15.72-2.17-1.83
×[÷(-)] -÷2+5
提升点②综合运用折扣和成数解决实际问题
□〇□=□( )
480÷60= 3.72+6.28= +×1=
235+99= ﹣= 12×÷12×=