Evaluate $-3-7-2$−3−7−2
Evaluate: $-3-2-\left(-6\right)$−3−2−(−6)
Evaluate $94-\left(-43\right)$94−(−43).
Evaluate: $15+24+\left(-60\right)$15+24+(−60)
scientific notation, exact and approximate answers, significant figures and rounding
distinguish between exact and approximate answers and write approximate answers correct to a given number of decimal places or significant figures