求图中阴影部分的面积(单位:cm)
快快算.6.0﹣2.4= 5.3+3.5= 4.7+3.6=20×13= 24×30= 640÷9== = =
口算下列各题.9.9+0.01= 0.08×0.5= 1.25×0.5×0.8== = ﹣+=
直接写出得数①5÷2= ②0.2×3= ③7.5+25=④5.5﹣0.5= ⑤+= ⑥1﹣=
直接写出得数.6.4+0.16= 3.8﹣2= ×5+×9=343+257= 80÷0.02= 87.58﹣(7.58﹣3.8)=
0.36÷1.2= 0.78﹣0.3= 3.7×2= 0.4×0.5=0.39+0.61= 10﹣7.2= 0.88÷1.1= 0.75×4=11﹣1.5= 2.48÷4= 7.8﹣0.38= 2.8×5=4×10.1= 4×0.25= 3.2+1.6= 10.6﹣5.2=0.32+1.68= 0.8×125= 7.28÷7= 4.8+39=43÷0.01= 0.4÷2= 1.3×60= 1.5×0.04=1.53﹣0.7= 1.5﹣0.6= 0.3÷1.5= 95÷19=0.65+4.35= 14﹣7.4= 11.2﹣9.8= ﹣=﹣= += ﹣= +3=+= += ﹣= +=1﹣= += += ﹣0=﹣= 1﹣= 0+= ﹣=+= ﹣= += ++=+﹣= +(﹣)= 0.9×1.25×8= 5.85+1.37+4.25=0.43×10+57= 62﹣2.8﹣1.2= 2.7×3÷2.7×3= 0.8×0.5×1.25=