Find $8.9-\left(1.5+3.3\right)$8.9−(1.5+3.3) giving your answer as a decimal.

Find $6.8-2.4-1.3$6.8−2.4−1.3 giving your answer as a decimal.

Find $4.36-3.23+3.34$4.36−3.23+3.34 giving your answer as a decimal.

Find $58.57-\left(98.87-55.61\right)$58.57−(98.87−55.61) giving your answer as a decimal.