5.2米=米厘米
4.72×0.994.72 5.43×0.820.82
3.4×0.93.5×0.8 3.14×1.531.4×0.15
①1cm ②2cm ③3cm ④4cm
13.4-8= 5.6+4= 23+4.7= 10-2.3=
7.5÷10= 2.3×4×0= 0.06×0.7= 0.125×80=
①0.125×4.78×80
②2.8×3.6+1.4×2.8
③(0.4+40)×2.5
④78.7-17.7×3.6
⑤18÷[4×(8-6.5)]
⑥17.25×99+17.25