Tulong po please pang grade 7 po

1.)

Add the numbers

2.)

Keep the sign of the number with the larger absolute value and subtract the smaller absolute value from the larger

Subtract the numbers

3.)

When there is an + in front of an expression in parentheses, the expression remains the same

Subtract the numbers

4.)

When there is an + in front of an expression in parentheses, the expression remains the same

Calculate the difference

5.)

The sum of two opposites equal 0

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450