Question

Question was provided via image upload.

Explanation:

Step1: Rewrite 0.25 as fraction

$0.25 = \frac{1}{4}$

Step2: Calculate 18 times 1/4

$18 \times \frac{1}{4} = \frac{18}{4} = 4.5$

Step3: Split 7.2 into 7 + 0.2

$26 \times 7.2 = 26 \times (7 + 0.2)$

Step4: Distribute multiplication over addition

$26 \times 7 + 26 \times 0.2 = 182 + 5.2 = 187.2$

Step5: Split 9.3 into 9 + 0.3

$17 \times 9.3 = 17 \times (9 + 0.3)$

Step6: Distribute multiplication over addition

$17 \times 9 + 17 \times 0.3 = 153 + 5.1 = 158.1$

Step7: Split 43.5 into 40 + 3.5

$21 \times 43.5 = 21 \times (40 + 3.5)$

Step8: Distribute multiplication over addition

$21 \times 40 + 21 \times 3.5 = 840 + 73.5 = 913.5$

Step9: Split 4.74 into 4 + 0.7 + 0.04

$48 \times 4.74 = 48 \times (4 + 0.7 + 0.04)$

Step10: Distribute multiplication over addition

$48 \times 4 + 48 \times 0.7 + 48 \times 0.04 = 192 + 33.6 + 1.92 = 227.52$

Answer:

1. $4.5$
2. $187.2$
3. $158.1$
4. $913.5$
5. $227.52$