Simplify: 25 - 20 - 8 ÷ 4 - 15 - 25 ÷ 5 ÷ 2

For simplification of numerical expressions, we follow the rule of BODMAS. This rule tells the order that we shall follow while simplifying. The order is given below: B - Brackets O - of D - Divide M - Multiply A - Add S - Subtract The given question is : 25 - 20 - 8 ÷ 4 - 15 - 25 ÷ 5 ÷ 2 = 25 - 20 - 8 ÷ 4 - 15 - 5 ÷ 2 = 25 - 20 - 8 ÷ 4 - 10 ÷ 2 = 25 - 20 - 2 - 5 = 25 - 20 - - 3 = 25 - 20 + 3 = 25 - 23 = 2 ∴ 25 - 20 - 8 ÷ 4 - 15 - 25 ÷ 5 ÷ 2 = 2

Simplify: 45 ÷ 8 - - 2 o f 5 + 3

For simplification of numerical expressions, we follow the rule of BODMAS. This rule tells the order that we shall follow while simplifying. The order is given below: B - Brackets O - of D - Divide M - Multiply A - Add S - Subtract The given question is : 45 ÷ 8 - - 2 o f 5 + 3 = 45 ÷ 8 - - 2 × 5 + 3 = 45 ÷ 8 - - 10 + 3 = 45 ÷ 8 - - 7 = 45 ÷ 8 + 7 = 45 ÷ 15 = 3 ∴ 45 ÷ 8 - - 2 o f 5 + 3 = 3

E M B I B E

Composite Mathematics For Class VII>Chapter 1 - Integers>EXERCISE 1(D)>Q 10

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The set of integers is not closed under

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Important Questions on Integers

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Composite Mathematics For Class VII>Chapter 1 - Integers>EXERCISE 1(D)>Q 11

1763 \times (- 2) + (- 1763) \times 98 =

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Composite Mathematics For Class VII>Chapter 1 - Integers>EXERCISE 1(D)>Q 12

Evaluate

(- 6 + 34) \div (- 14) + 2

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Composite Mathematics For Class VII>Chapter 1 - Integers>EXERCISE 1(D)>Q 13

Simplify:

$25 - [20 - \{8 \div 4 - (15 - 25 \div 5) \div 2\}]$

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Composite Mathematics For Class VII>Chapter 1 - Integers>EXERCISE 1(D)>Q 13

Simplify:

$45 \div \{8 - (- 2 o f 5 + 3)\}$

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Composite Mathematics For Class VII>Chapter 1 - Integers>EXERCISE 1(E)>Q 1

The temperature of the fridge compartment of a refrigerator is set at

8 ° C

. The freezer compartment is set at

- 10 ° C

. What is the difference between these temperature settings?

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Composite Mathematics For Class VII>Chapter 1 - Integers>EXERCISE 1(E)>Q 2

A car moves $17 km$ north from a point A and then moves $14 km$ towards south along the same road. If the distance towards north is represented by a positive integer, then how will you represent the distance towards south. By which integer will you represent its final position from A?

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