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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

2. Find the difference of the following.
(a) 71 kL 9 hL 4 daL 2 L and 10 kL 2 hL 6 daL 4 L

(b) 6 m 5 dm 4 cm 9 mm and 3 m 4 dm 8 cm 2 mm
(c) 5 kg 7 hg 2 dag 6 g and 3 kg 8 hg 5 dag 9 g

(d) 32 m 75 cm and 14 m 25 cm

(e) 109 g 379 mg and 55 g 312 mg
(f) 72.5 mL and 65.650 mL
3. Find the product.

(a) 25 m 15 cm by 9 (b) 57 kg 275 g by 13

(c) 5 kg 7 hg 6 dag 9 g by 14 (d) 6 km 5 hm 3 dam 4 m by 12
(e) 25 L 175 mL by 15 (f) 7 kL 546 L by 8
4. Find the quotient in higher units.

(a) 9 g 6 dg 5 cg 1 mg ÷ 7 (b) 56 kg 349 g ÷ 9

(c) 5 m 8 dm 4 cm 8 mm ÷ 8 (d) 9 km 5 hm 6 dam 4 m ÷ 12
(e) 5 kL 2 hL 7 daL 8 L ÷ 13 (f) 9 L 562 mL ÷ 14

5. The length of one piece of rope is 13.25 m. Neha has another piece of ribbon measuring
18.85 m. She puts both the ribbons end-to-end. Find the length of the resultant piece
of ribbon.
6. Atul weighs 48 kg 250 g. Siya weighs 8 kg 125 g less than Atul. Find the weight of Siya.

7. There are two buckets full of water. The capacity of one bucket is 18 L 350 mL and
that of other is 16 L 755 mL. How much water is there in both the buckets? Express
the answer in L.
8. 25 glasses can measure 8 L 205 mL of juice. What is the capacity of 5 such glasses?

SPEED, DISTANCE AND TIME

Speed tells us how fast an object or a person moves. Enrichment

It is the rate of covering a distance in one unit of time. A speed of 50 km per hour means
that a distance of 50 km will be covered in one hour.

Similarly, if a man walks 4 km in 1 hour, his walking speed is 4 km per hour.
Speed is calculated by dividing the distance travelled by the total time taken to travel that
distance. Thus, Speed = Distance ÷ Time.

We can get the following relationship from the above formula:

Distance = Speed × Time and Time = Distance
Speed
teacher’s
tip Explain the children that for multiplication and division of units of measurement, arrange the numbers in
appropriate columns and then multiply or divide as decimal numbers.

176 Mathematics-5