⊙脱式计算.(能简便的要用简便方法) (1)101×26-520÷4 | ⊙(2)3.6+
(1)101×26-520÷4, =(100+1)×26-520÷4, =100×26+1×26-520÷4, =2600+26-520÷4, =2600+26-130, =2626-130, =2496; (2)3.6+ 4 9+6.4+ 5 9, =(3.6+6.4)+( 4 9+ 5 9), =10+1, =11; (3)4.9÷[(5.5-0.6)×0.1], =4.9÷[4.9×0.1], =4.9÷0.49, =10.
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