Class 7th Chapter 2 Exercise 2.6
class 7 math exercise 2.6|| class 7 maths 2.6
Q1) Find
1) 0.2 ✕ 6
sol 0.2 × 6 = 2/10 × 6 = 12/10 = 1.2 Answer
2) 8 × 4.6
sol 8 × 4.6 = 8 × 46/10 = 368 / 10 = 36.8 Answer
3) 2.71 × 5
sol 2.71 × 5 = 271/100 × 5/1 = 1355/100 = 13.55 Ans
4) 20.1 × 4
sol 20.1 × 4 = 201/10 × 4 = 804/10 = 80.4 Answer
5) 0.05 × 7
sol 0.05 × 7 = 5/100 × 7 = 35/100 = 0.35 Answer
6) 211.02 × 4
sol 211.02 × 4 = 21102/100 × 4 = 84408/100 = 844.08 Answer
7) 2 × 0.86
sol 2 × 0.86 = 2 × 86/100 = 172/100 = 1.72 Answer
class 7 math exercise 2.6|| class 7 maths 2.6
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Q2) Find the area of a rectangle whose length is 5.7 cm and breadth is 3 cm.
sol Length = 5.7 cm
Breadth = 3 cm
According to question
Area of rectangle = length × breadth
= 5.7 × 3
= 57/10 × 3
= 171/10
= 17.1 cm square Answer
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Q3) Find
1) 1.3 × 10
sol 1.3 × 10 = 13/10 × 10 = 13 Answer
2) 36.8 × 10
sol 36.8 × 10 = 368/10 × 10 = 368 Answer
3) 153.7 × 10
sol 153.7 × 10 = 1537/10 × 10 = 1537 Answer
4) 168.07 × 10
sol 168.07 × 10 = 16807/100 × 10
= 1680.7 Answer
5) 31.1 × 100
sol 31.1 × 100 = 311/10 × 100
= 3110 Answer
6) 156.1 × 100
sol 156.1 × 100 = 1561/10 × 100
= 15610 Answer
7) 3.62 × 100
sol 3.62 × 100 = 362/100 × 100
= 362 Answer
8) 43.07 × 100
sol 43.07 × 100 = 4307/ 100 × 100
= 4307 Answer
9) 0.5 × 10
sol 0.5 × 10 = 5/10 × 10
= 5 Answer
10) 0.08 × 10
sol 0.08 × 10 = 8/100 × 10
= 8/10 = 0.8 Answer
11) 0.9 × 100
sol 0.9 × 100 = 9/10 × 100
= 90 Answer
12) 0.03 × 1000
sol 0.03 × 1000 = 3/10 × 1000
3 × 10 = 30 Answer
class 7 math exercise 2.6|| class 7 maths 2.6
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Q4) A two-wheeler covers a distance of 55.3 km in one liter of petrol. How much distance will it
cover in 10 liters of petrol?
sol Distance covered in 1 liter of petrol = 55.3 km
Distance covered in 10 liters of petrol
= 55.3 × 10
= 553 km Answer
class 7 math exercise 2.6|| class 7 maths 2.6
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Q5) Find
1) 2.5 × 0.3
sol 2.5 × 0.3 = 25/10 × 3/10 = 75/100
= 0.75 Answer
2) 0.1 × 51.7
sol 0.1 × 51.7 = 1/10 × 517/10 = 517/100
= 5.17 Answer
3) 0.2 × 316.8
sol 0.2 × 316.8 = 2/10 × 3168/10 = 6336/100
= 63.36 Answer
4) 1.3 × 3.1
sol 1.3 × 3.1 = 13/10 × 31/10 = 403/100
= 4.03 Answer
5) 0.5 × 0.05
sol 0.5 × = 5/10 × 5/100 = 25/1000
= 0.025 Answer
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6) 11.2 × 0.15
sol 11.2 × 0.15 = 112/10 × 15/100
= 1680/1000 = 168/100
= 1.68 Answer
7) 1.07 × 0.02
sol 0.02 × 1.07 = 2/100 × 107/100
= 214/10000 = 0.0214 Ans
8) 10.05 × 1.05
sol 10.05 × 1.05 = 1005/100 × 105/100
= 105525/10000 = 10.5525 Ans
9) 101.01 × 0.01
sol 101.01 × 0.01 = 10101/100 × 1/100
= 10101/10000 = 1.0101 Ans
10) 100.01 × 1.1
sol 100.01 × 1.1 = 10001/100 × 11/10
= 110011/1000
= 110.011 Answer
class 7 math exercise 2.6|| class 7 maths 2.6
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complete exercise 2.6
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