①259×36
②68×770
③309×54
3600÷[(28+8)÷4] (220-150÷25)×3
①5.7+x=26.7
②x÷4.5=3.6
③32+3x=47
①5.72+38.8=
②6.7-3.57=
③4.5×0.58=
④3.04×2.6=
97÷8= 409÷2= *651÷5=
38×45= 67×98= 76×23=
★30-18.76=
5.68+2.4=
803-207= ÷5= 798+150= + =
0.25×8= 1.5- = 7.5÷ = 0.77+0.3=
9.8-8= × = 45.54÷45= 24× =