①4.6+1.9=
②2.5×4=
③0.053×100=
④0.8×0.5=
⑤0.12×50=
⑥10-8.75=
⑦0÷100×1000=
⑧3.25-1.22=
①3.2×4.6+3.2×5.4
②10.63-(3.63+1.25)
③7.8+4.56+2.2
①9x+0.5=18.5
②4y- 3.6=4.4
③m÷0.6=0.45