89×101-89
55+136+64
151×12+49×12
201×34
256-128-72
560+16+5
2.3+0.8=
5﹣3.9=
2.58﹣0.5=
38×0+62=
3.7×1000=
125÷100=
0.28+0.2=
8×5÷8×5=
①410-80=
②270+600=
③420÷70=
④25x40=
⑤108-8x7=
⑥136÷4x4=
⑦24+26x5=
⑧35X4÷35x4=
5.6+3.2= 13.6+2= 4.7-2.8= 6-2.4=
4.2×100= 8.3÷10= 25×40= 18-9×0=
28×730+73×720
24×56+48×22
36×98+72
999×778+ 333×666
7.69+9.97+2.31
52.7-18.46-1.54
0.25×8.7×4
0.97×5.2-0.87×5.2
(1.25+12.5)×8
84×0.78+0.78×16
456÷92 635÷58 408÷8×27