Solve (4*0.2)+(5*0.3)+(6*0.1)+(7*0.1)+(8*0.3)

$$(4 \times 0.2)+(5 \times 0.3)+(6 \times 0.1)+(7 \times 0.1)+(8 \times 0.3)$$

Evaluate

$$6$$

Solution Steps

Multiply 4 and 0.2 to get 0.8.

$$0.8+5\times 0.3+6\times 0.1+7\times 0.1+8\times 0.3$$

Multiply 5 and 0.3 to get 1.5.

$$0.8+1.5+6\times 0.1+7\times 0.1+8\times 0.3$$

Add 0.8 and 1.5 to get 2.3.

$$2.3+6\times 0.1+7\times 0.1+8\times 0.3$$

Multiply 6 and 0.1 to get 0.6.

$$2.3+0.6+7\times 0.1+8\times 0.3$$

Add 2.3 and 0.6 to get 2.9.

$$2.9+7\times 0.1+8\times 0.3$$

Multiply 7 and 0.1 to get 0.7.

$$2.9+0.7+8\times 0.3$$

Add 2.9 and 0.7 to get 3.6.

$$3.6+8\times 0.3$$

Multiply 8 and 0.3 to get 2.4.

$$3.6+2.4$$

Add 3.6 and 2.4 to get 6.

$$6$$

Factor

$$2\times 3$$