用递等式计算下面各题.(125+13×24)×5 (98-121÷11)÷29 21×(230-192÷4) (470+35×3)÷23 2
用递等式计算下面各题.(125+13×24)×5(98-121÷11)÷2921×(230-192÷4)(470+35×3)÷232600÷(1280-15×72)377...
用递等式计算下面各题.(125+13×24)×5 (98-121÷11)÷29 21×(230-192÷4) (470+35×3)÷23 2600÷(1280-15×72) 3774÷37×(65+35)
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(125+13×24)×5 =(125+312)×5, =437×5, =2185; (98-121÷11)÷29 =(98-11)÷29, =87÷27, =3; 21×(230-192÷4) =21×(230-68), =21×162, =3402; (470+35×3)÷23 =(470+105)÷23, =575÷23, =25; 2600÷(1280-15×72) =2600÷(1280-1080), =2600÷200, =13; 3774÷37×(65+35) =102×100, =10200. |
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