NCERT Class 7 Solutions: Integers (Chapter 1) Exercise 1.1 – Part 3

Q-8 Verify Equation for the following values of a and b:

  1. Equation

  2. Equation

  3. Equation

  4. Equation

Solution:

Given the order of operations in numeric expressions from related equation

Given the Order of Operations in Numeric Expressions

Given the order of operations in numeric expressions from related equation

  1. Given Equation

    We have Equation

    Equation

    Equation

    Since Equation

  2. Given Equation

    We have Equation

    Equation

    Equation

    Since Equation

  3. Given Equation

    We have Equation

    Equation

    Equation

    Since Equation

  4. Given Equation

    We have Equation

    Equation

    Equation

    Since Equation

Q-9 Use the sign of Equation in the box to make the statement true:

  1. Equation

  2. Equation

  3. Equation

  4. Equation

  5. Equation

    Smaller numbers whether positive or negative are towards the left.

    Comparing Negative Numbers

    Smaller numbers whether positive or negative are towards the left.

Solution:

  1. Equation

    Equation

    Equation

    Equation (-12 is to the left of -4 on the number line and hence is smaller)

  2. Equation

    Equation

    Equation

    Equation

    Equation (-15 is to the left of -2 on the number line and hence is smaller)

  3. Equation

    Equation

    Equation

    Equation (-7 is to the right of -29 on the number line and hence is bigger)

  4. Equation

    Equation

    Equation

    Equation

    Equation (0 is to the left of 20 on the number line and hence is smaller)

  5. Equation

    Equation

    Equation

    Equation

    Equation (-101 is to the right of -159 on the number line and hence is larger)

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