10.1 * 69 = simple algorithm 10.1*69= Simple algorithm

10.1 * 69 = simple algorithm 10.1*69= Simple algorithm


10.1*69=(10+0.1)*69=690+6.9=696.9



Simple algorithm of 3.69 * 9 + 3.69


3.69*9+3.69
=3.69×(9+1)
=3.69×10
=36.9



Simple algorithm of multiplying 102 by 69


102 * (70-1) or (100 + 2) * 69
seven thousand and thirty-eight



7 minus 5 / 4 times 2 / 15 minus 5 / 6
Simple calculation


7 minus 5 / 4 times 2 / 15 minus 5 / 6
7-5\4*2\15-5\6
=7-1\6-5\6
=7-(1\6+5\6)
=7-1
=6



The product of 3.5 times 4 minus 8 times a number. The difference is 5.6. Find this number
Formula


The product of 3.5 times 4 minus 8 times a number. The difference is 5.6. Find this number
This number = (3.5 × 4-5.6) / 8 = 0.8



6 / 7 times () = 1.25 times () = 5 / 9 divided by () = () minus 4 / 5


6 / 7 (7 / 6) = 1.25 times (0.8) = 5 / 9 divided by (5 / 9) = (9 / 5) minus 4 / 5



If x ^ 2 plus x plus 1 equals 5, then (7 minus x) times (8 plus x) equals 5


x^2+x+1=5
x^2+x=4
(7-x)(8+x)
=56-x-x^2
=56-(x^2+x)
=56-4
=52



How much is x multiplied by 12 minus 8 multiplied by 12 = 36


11



Seven out of eight times seven minus one out of eight


6



7 out of 8 times 3 out of 5 plus 4 out of 7 minus 2 out of 5


=21/40+4/7-2/5
=307/280-2/5
=39/56