(2.1+0.54)÷0.2
7.4×0.56+0.44×7.4
9.4×10.1
100÷(1.25÷1.5)
7.28+3.2÷2.5 6.1×3.6+3.6×3.9
9.8×25 1.25×0.7×0.8
①836-192÷8×16
②1.4÷(1.4+0.7)
③0.8×0.4×12.5×0.25
④ ÷6+ ÷20
⑤14×19×( + )
⑥ ÷[( + )÷ ]