class 7 ex 2.5 || class 7 math ex 2.5 || math class 7 ex 2.5
Class 7th Chapter 2 Exercise 2.5
class 7 ex 2.5 || class 7 math ex 2.5 || math class 7 ex 2.5
Q5) Write the following decimal numbers in the expanded form
1) 20.03
sol 20.03 = 2✕10 + 0✕1 + 0×1/10 +3×1/100 Answer
2) 2.03
sol 2.03 = 2×1 + 0×1/10 + 3×1/100
3) 200.03
sol 200.03 = 2×100 + 0×10 + 0×1 + 0×1/10 + 3×1/100
4) 2.034
sol 2.034 = 2×1 + 0×1/10 + 3×1/100 + 4×1/1000
Q6) Write the place value of 2 in the following of the decimal numbers
1) 2.56
sol 2.56 = Ones
2) 21.37
sol Tens
3) 10.25
sol 10.25 = Tenth
4) 9.42
sol 9.42 = Hundredth
5) 63.352
sol 63.352 = Thousandth
class 7 ex 2.5 || class 7 math ex 2.5 || math class 7 ex 2.5
Q7) Rahul went from place A to place B and there to place C. A is 7.5 km from B.
B is located 12.7 kilometers away from C
Amit went from place A to place D and from there to place C. D is 9.3 km from
A and C is 11.8 km from D.
Who traveled more and by how much?
sol Distance covered by Rahul = AB + BC
= 7.5 +12.7 = 20.2 km
Distance covered by Amit = AD + DC
= 9.3 + 11.8 = 21.1 km
Amit covered more distance by = 21.1 — 20.2 = 0.9 km Answer
Q8) Shyama bought 5kg 300g Apples and 3kg 250g mangoes. Sarla bought
4 kg 800g oranges and 4kg 150g bananas. who bought more fruits?
sol Fruits bought by Shyama = 5kg 300g + 3kg 250g
= 8kg 550g
= (8 + 550/1000) kg
= ( 8 + 0.550 ) kg
= 8.550 kg
Fruits bought by Sarla = 4kg 800g + 4 kg 150g
= 8kg 950g
= ( 8 + 950 /1000) kg
= ( 8 + 0.950 ) kg
= 8.950 kg
so, 8.950 > 8.550
Sarla bought more fruits Answer
Q9) What is the difference in distance between 28 km and 42.6 km?
sol 28 km is less than 42.6 km
= 42.6 ー 28.0
= 14. 6 km
class 7 ex 2.5 || class 7 math ex 2.5 || math class 7 ex 2.5
COMPLETE EXERCISE 2.5
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