33.3乘以33.3+66.6乘以66.7+66.7乘以66.7的简便计算

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 20:28:11

33.3乘以33.3+66.6乘以66.7+66.7乘以66.7的简便计算
33.3乘以33.3+66.6乘以66.7+66.7乘以66.7的简便计算

33.3乘以33.3+66.6乘以66.7+66.7乘以66.7的简便计算
33.3*33.3+66.6*66.7+66.7*66.7
＝33.3*33.3+(2*33.3)*66.7+66.7*66.7
利用公式a^2+b^2+2ab=(a+b)^2
得
33.3*33.3+(2*33.3)*66.7+66.7*66.7
= (33.3+66.7)^2
= 100*100
= 10000

33.3*33.3+66.6*66.7+66.7*66.7=33.3*33.3+(33.3*66.7+33.3*66.7)+66.7*66.7=33.3*(33.3+66.7)+(33.3+66.7)*66.7=3330+6670=10000

33.3乘以33.3+66.6乘以66.7+66.7乘以66.7的简便计算 9.99乘以22.2加33.3乘以3.34 9.99乘以22.2加33.3乘以3.34 11.11乘以6666+7778乘以33.3的解法 25乘以?乘以?等于（?乘以12）乘以（?乘以? 9.99乘以66.6+111乘以0.333乘以9的简便运算 48=()乘以()乘以()乘以()乘以()乘以() 54=()乘以()乘以()乘以()乘以() 那么它们最小公倍数是（） 100乘以(-2)乘以(-8)乘以0.01 9999乘以7778乘以3333乘以6666 0.25乘以5乘以4乘以125 625乘以625乘以625乘以8乘以8乘以8乘以8乘以2乘以2乘以2乘以2乘以2 6.2乘以0.9乘以1. 101乘以99乘以9999 1乘以2乘以3+2乘以3乘以4+3乘以4乘以5+...+7乘以8乘以9 6乘以6乘以6 2.5乘以3.2乘以12.5 =3乘以2乘以1,=4乘以3乘以2乘以1,=5乘以4乘以3乘以2乘以1,那么100!除以99! 10乘以20乘以30乘以40乘以50乘以60乘以70乘以80乘以90乘以100等于多少