Simple calculation 7.4 * 9.8-14.5

Simple calculation 7.4 * 9.8-14.5


7.4X9.8-14.5=(7.4X10-7.4X0.2)-14.5=(74-1.48)-14.5=72.52-14.5=58.02



How to calculate 8-14 × 7 / 2


Hello
I can see the answer at a glance. The algorithm is not simple and complex, but I think it's better to be fast. Therefore, I suggest that you simply decompose it when dealing with these problems
8-7×14/2=8-7×7=8-49=-41
It's more convenient to divide the whole number that you are good at than to multiply. See you later