Toán tính thuạn tiện nhất 13,25 : 0,5 + 13,25 : 0,2 + 0,25 17/11/2021 By Arya tính thuạn tiện nhất 13,25 : 0,5 + 13,25 : 0,2 + 0,25
Bài làm: 13,25:0,5+13,25:0,2+0,25 = 13,25:1/2+13,25:1/5+1/4 = 13,25×2+13,25×5+1/4 = 13,25×(2+5)+1/4 = 13,25×7+14 = 371/4+1/4 = 372/4 Trả lời
$13,25:0,5+13,25:0,2+0,25$ $=13,25:\dfrac{1}{2}+13,25:\dfrac{1}{5}+\dfrac{1}{4}$ $=13,25×2+13,25×5+\dfrac{1}{4}$ $=13,25×(2+5)+\dfrac{1}{4}$ $=13,25×7+\dfrac{1}{4}$ $=\dfrac{371}{4}+\dfrac{1}{4}$ $=\dfrac{372}{4}$ $=93$. Trả lời
Bài làm: 13,25:0,5+13,25:0,2+0,25
= 13,25:1/2+13,25:1/5+1/4
= 13,25×2+13,25×5+1/4
= 13,25×(2+5)+1/4
= 13,25×7+14
= 371/4+1/4
= 372/4
$13,25:0,5+13,25:0,2+0,25$
$=13,25:\dfrac{1}{2}+13,25:\dfrac{1}{5}+\dfrac{1}{4}$
$=13,25×2+13,25×5+\dfrac{1}{4}$
$=13,25×(2+5)+\dfrac{1}{4}$
$=13,25×7+\dfrac{1}{4}$
$=\dfrac{371}{4}+\dfrac{1}{4}$
$=\dfrac{372}{4}$
$=93$.