4.5×27=
11.7+3.86=
18-7.18=
先减再乘最后除:3×80-40÷5
先除再减最后乘:3×80-40÷5
先减再除最后乘:3×80-40÷5
①437×26=
②504×55=
③18.54-13.65=
④37.46+2.87=
①3.8×0.15=
②2.7+9.41=
③4.6×50=
④13.2×9.8=
⑤8.7×2.04=
⑥0.86×0.72=
⑦5-1.08=
⑧7.5×1.8=