1.3: When does order matter?

• operations
• order of operations
• precedence
• operators

True or false:

• $8\times \left(\frac{1}{4}\right)=\left(\frac{1}{4}\right)\times 8$
• $8/4=4/8$
• $2+(-5)=(-5)+2$
• $2-5=5-2$