### Home > MC1 > Chapter 2 > Lesson 2.4.1 > Problem2-132

2-132.

Simplify each expression below. For each expression, draw a picture or show how you know your answer makes sense.

1. $5+(−4)+12$

$5+(−4)+12=13$
Remember to show how you know.

1. $6(−2)+10$

$6(−2)+10=−2$
Remember to show how you know.

1. $100(−5)$

$100(−5)=−500$
Remember to show how you know.

1. $−212+(−102)$

1. $4+6(3)+2(5−1)$
1. $5+3(5)−4(5)$
Simplify: $5+15−20=$ ?