jab121805 jab121805

12-04-2018
Mathematics

contestada

Use mental math to multiply. 12×26

Respuesta :

sqdancefan sqdancefan

12-04-2018

There are many ways to do this.
1. 12 * 26 = (10 +2)*26 = 260 +52 = 312

2. 12*26 = (10*20) +10*(1*6 +2*2) +(2*6) = 200 +100 +12 = 312

3. 12*26 = 4*3*26 = 4*78 = 2*156 = 312

4. 12*26 = 3*4*26 = 3*2*52 = 3*104 = 312

Answer Link

Otras preguntas

g You currently hold an inflation-indexed bond, which pays out real coupons of 10% per year, starting one year from now. The bond has a real face value of $600,

an=(−3n+4)n(−4n−8)n In this problem you must attempt to use the Root Test to decide whether the series converges. Compute L=limn→[infinity]|an|−−−√n Enter the n

x = ?? a) 1 b) 3 c) 7

Christie and Jergens formed a partnership with capital contributions of $250,000 and $350,000, respectively. Their partnership agreement calls for Christie to r

Need some help with a few consecutive integer word problems, tysm if you do :) The sum of three consecutive odd integers is -57. Find the integers. A. -19, -17,

plz try your best do not quess

A textbook store sold a combined total of 368 psychology and sociology textbooks in a week. The number of psychology textbooks sold was three times the number o

windows can create a mirror set with two drives for data redundancy which is also known as

A particle oscillates between the points x=40 mm and x=160 mm withan acceleration a =k(100 - x), where a and x are expressed in mm/s2 andrespectively, and k is

(04.03 MC) Alex is planning to surround his pool ABCD with a single line of tiles. How many units of tile will he need to surround his pool? Round your answer t