whats the easiest way to find value of
8 * 8
7 * 8
7 * 7
without memorizing
Multiplication trick
John Collins
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William Rivera
common core?
(10-2)*8
(5+2)*8
(5+2)*7
Wyatt Myers
did you memorize how to speak your mother tongue? No, you just grew up hearing it and knowing how it feels to speak it.
You just had to learn how 8*8 feels like 64, 7*8 feels like 56, 7*7 feels like 49.
Jordan Scott
>without memorizing
Don't talk stupid.
Memorise the square numbers.
7x8=8x8-8
Otherwise this.
But seriously just learn the squares.
Benjamin Turner
b-but
9 * 9 can be shortened to 90 - 9
9 * 6 can be (9 - 1) / 2 and add 5 on first digit
Dylan Ramirez
not him but you mean memorize 5**2 , 6**2, 7**2 etc?
Jackson Wood
i meant 9 * 5
Cameron Turner
add number on left to itself a number of times equal to number on right
e.g.
8 * 7 = 8 + 8 + 8 + 8 + 8 + 8 + 8 = 56
James Peterson
something compact
why would i add if i can remember table in my head
Eli Anderson
i guess memorizing is the only way out