问题
填空题
(a×b)×c=______ 8×(125+9)=______+______.
答案
(1)(a×b)×c=a×(b×c);
(2)8×(125+9),
=8×125+8×9,
=1000+72,
=1072.
故答案为:a×(b×c);8×125;8×9.
(a×b)×c=______ 8×(125+9)=______+______.
(1)(a×b)×c=a×(b×c);
(2)8×(125+9),
=8×125+8×9,
=1000+72,
=1072.
故答案为:a×(b×c);8×125;8×9.