①4.3-1.6=
②0.74+ =
③2 - =
④2-1 =
⑤5 +7=
⑥0.375+1 =
⑦5 -1 -1 =
⑧ +0.5+0.5- =
①1--
②2--
③-+
④-(+)
①-+
②++
③-(-)
99×7.2= 45×10.1= ÷ = + ﹣ = 1.25×3.2×2.5=
28.9÷1.25÷0.8= 56.5×9.9+5.65= (2.5﹣0.25)×0.4=
78.2﹣8.2×1.3= 4.5÷1.5÷1.5=