10-4= 7+0= 4+4+2=
7-3= 8+1= 9-5-3=
8-3= 7+3= 3-1+7=
①
②
③
④
0.125×16＝ 1.04×5＝ 7×12÷7×120＝
18.8×20%＝ ×0.55＝ 123+﹣123+＝
① ×[0.75﹣（ ﹣25%）]÷1.25
②6.37×1.25﹣1 +4.63×125%
③7.09× +0.225×6﹣60%×0.64
④ ×3+ ×25+ ×
⑤
⑥
×0.55＝ 123+
﹣123+＝
