解:777+777-777×777÷777等于( 777 )
∵已知需求出777+777-777×777÷777等于多少
∴777 + 777 - 777 × 777 ÷ 777
= 777 + 777 - 777 × 777 × 1/777
= 777 + 777 - 777 × (777 × 1/777)
= 777 + 777 - 777 × 1
= 777 + 777 - 777
= 777 × (1 + 1 - 1)
= 777 × (2 - 1)
= 777 × 1
= 777
答:777+777-777×777÷777等于777
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