Problem 99
Add or subtract. $$10+15$$
Problem 102
Add or subtract. $$15-12$$
Problem 103
Write each of the following statements in symbols. The difference of 10 and x.
Problem 104
Rewrite the following using the commutative property of multiplication. $$7(x)=$$
Problem 105
Add or subtract. $$[3+10]+[8-2]$$
Problem 107
Apply the distributive property to each expression and then simplify the result. $$2(3+4)$$
Problem 107
Add or subtract. $$276+32+4,005$$