just multiply 6x7 first
6*7 = 42
then count the total number of 0's
there are 4 of them so add 4 0's to the end of 42 to get 420,000
12=x ! Just subtract 3 from both sides.
Scale 1:2 means that 1 cm on the drawing is 2 cm in reality. So the square is 8cm x 8cm = 64cm².
Notice that while the size gets two times as big, the area gets 2²=4 times as big. That can be confusing. If you actually draw the square on 1:1 and also on 1:2, you can easily see that the latter fits 4 times in the real size...
First way is create an equation like this:
and calculating it.
Second way is to find 37% of each number and then add it
![0.37*27 \frac{3}{5}](https://tex.z-dn.net/?f=0.37%2A27%20%5Cfrac%7B3%7D%7B5%7D%20)
+
![0.37* \frac{15}{9}](https://tex.z-dn.net/?f=0.37%2A%20%5Cfrac%7B15%7D%7B9%7D%20)
In both cases the result is 10.829