Evaluate $9+\left(-7\right)-4$9+(−7)−4
Evaluate $-9+6-\left(-17\right)$−9+6−(−17)
Evaluate $20+\left(-14\right)-\left(-2\right)-18$20+(−14)−(−2)−18
Evaluate $6-\left(13-3\right)$6−(13−3)
Solve mathematical problems using multi-step order of operations with rational numbers including grouping symbols, whole-number exponents and absolute value.
Add, subtract, multiply and divide rational numbers with procedural fluency.