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E:\Working\Focus_Learning\Math_Genius_5_(05-10-2023)\Open_Files\CHAP_08
\\November 22, 2023 4:46 PM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74

example 4: Divide the following.
(a) 44 km 88 m by 2 and express the result in km.

(b) 172 kg 8 g by 8 and express the result in kg.
(c) 18 L 225 mL by 15 and express the result in L.
Solution: (a) First, we convert the given measurements into km.

44 km 88 m 2 2 . 0 4 4 Quotient

1000 m = 1 km 2 4 4 . 0 8 8
4
–
88 m = 0.088 km 0 4 Dividend = 44.088
44 km 88 m = 44.088 km – 4 Divisor = 2
0 0 8 Quotient = 22.044
– 8 Remainder = 0
0 8

44 km 88 m ÷ 2 = 22.044 km – 8 Remainder
0
(b) 172 kg 8 g = 172.008 kg 2 1.5 0 1

First, we convert the given measurements into kilograms. 8 1 7 2.0 0 8
172 kg 8 g 1 6
1 2
1000 g = 1 kg 0 8
8 g = 0.008 kg 4 0
4 0
172 kg 8 g = 172.008 kg 0 0 8
8
172.008 ÷ 8 = 21.501 kg 0

1 2 1 5
(c) 18 L 225 mL = 18 L + 225 mL 15 1 8 2 2 5

= 18 × 1000 mL + 225 mL 1 5
3 2
= 18000 mL + 225 mL = 18225 mL 3 0

Now, 18225 mL ÷ 15 = 1215 mL = 1215 2 2
1 5
1000 7 5
7 5
= 1.215 L 0
Practice Time 8B

1. Find the sum of the following.
(a) 3 m 4 dm 5 cm 7 mm, 4 m 8 dm 7 cm 1 mm and 2 m 7 dm 3 cm 4 mm

(b) 4 kg 5 hg 7 dag 2 g, 3 kg 8 hg 2 dag 3 g and 5 kg 8 hg 2 dag 3 g
(c) 8 kL 3 hL 7 daL 5 L, 3 kL 6 hL 5 daL 2 L and 3 kL 5 hL 6 daL 4 L

(d) 5 km 248 m, 11 km 55 m and 3 km 6 m
(e) 18 g 250 mg, 10 g 57 mg and 6 g 589 mg
(f) 6 L 292 mL and 7 L 385 mL

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