If it says estimate then just round the big number e.g.
2) estimate
3000 x 9 = 27000
3) estimate
900 x 8 = 7200
find the product just means find the answer so yah
I don't understand the method that ur using I use grid method so I can't help with the actual working out
X^2+1x-12 is the answer hope it helped
Hi!to calculate a square root without a calculator is to see if you can get to that whole number by squaring smaller numbers,or multiplying a smaller number by it self.
Her error was 85-80=5
So her percent error was 5/85=0,059 which is 5,9%
Is it clear to you?
