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2.5×4=
6.4÷0.8=
0.1×0.2=
0÷2.7=
7.2÷8=
1.25×10=
0.3÷0.3=
5÷0.5=
2.5×32×12.5 (6.1-4.6)×0.8
4.14÷(9-7.2) 6.84×1.2+1.2×3.16
2x+1.6=12.4 7.6x-7x=3.6