问题
填空题
4.6+6.92+5.4=4.6+______+6.92
(25+80)×4=4×______+4×______.
答案
(1)4.6+6.92+5.4,
=4.6+5.4+6.92,
=(4.6+5.4)+6.92,
=10+6.92,
=16.92;
(2)(25+80)×4,
=4×25+4×80,
=100+320,
=420.
故答案为:5.4,25,80.
4.6+6.92+5.4=4.6+______+6.92
(25+80)×4=4×______+4×______.
(1)4.6+6.92+5.4,
=4.6+5.4+6.92,
=(4.6+5.4)+6.92,
=10+6.92,
=16.92;
(2)(25+80)×4,
=4×25+4×80,
=100+320,
=420.
故答案为:5.4,25,80.