计算16乘以3.14+8乘以3.14+26乘以3.14

计算16乘以3.14+8乘以3.14+26乘以3.14 100乘以(-2)乘以(-8)乘以0.01 625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 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 简便计算:2乘以56的平方+8乘以56乘以22+2乘以（44的平方） 观察1乘以2乘以3乘以4+1=25=5² 2乘以3乘以4乘以5+1=121=11²3乘以4乘以5乘以6+1=361=19²（1）计算5乘以6乘以7乘以8+1的结果是多少?（2）由此你能推出一般的结论吗? 24乘以125.28乘以2乘以5.21乘以36 简便计算 请你计算1乘以2乘以3乘以.乘以1991的乘积末端有几个零? 3.14乘以2等于多少? 告诉我曾以3.14乘以2乘以3乘以5等于几? -3.14乘以35.2+6.28乘以(-23.3)-1.57 乘以36.4 125乘以16等于括号125乘以8乘以2怎样用公式表示 3.14乘以9.8乘以 6.4等于多少 -3.14乘以35.2+6.28乘以(-32.4)= 2/12乘以14+2/14乘以16+2/16乘以18+2/18乘以20+1/20简便计算说清楚步骤 3,14乘以r的平方乘以2加3.14乘以2乘以r乘以6r等于32.97,求r的平方等于多少 5分之4乘以8分之1乘以16 简便计算 急要 快 10个9乘以9个8乘以8个2 怎么计算?888888888*22222222*9999999999