问题
填空题
埴一填.
18+12=12+______
36×42+36×58=______×(______+______)
2×9×5=2×______×9
(25+9)×4=______×______+______×______
8×(5×9)=8×______×______
93+84+16=______+(______+______)
答案
18+12=12+18
36×42+36×58=36×( 42+58)
2×9×5=2×5×9
(25+9)×4=25×4+9×4
8×(5×9)=8×5×9
93+84+16=93+( 84+16)
故答案为:18,36,42,58,5,25,4,9,4,5,9,93,84,16.