Class 7 Maths - BIHAR
Another Peek Beyond the Point
The chapter 'Another Peek Beyond the Point' in Class 7 Mathematics builds upon decimal numbers and extends the understanding of operations involving decimals, fractions, and their daily life applications. Students explore multiplication and division of decimals by powers of ten, conversion of units of measurement using decimals, and solving word problems related to money, length, and weight. This chapter is fundamental for building strong arithmetic skills required in higher classes. In the Bihar Board examinations, questions from this chapter frequently appear in both objective and short-answer formats, testing the student's computational accuracy and conceptual clarity with decimal placement.
Start Learning FreeKey Concepts
Multiplication of Decimals by 10, 100, and 1000
When multiplying a decimal number by 10, 100, or 1000, the decimal point shifts to the right by as many places as there are zeros.
Division of Decimals by 10, 100, and 1000
When dividing a decimal number by 10, 100, or 1000, the decimal point shifts to the left by as many places as there are zeros.
Multiplication of Two Decimals
Multiply the numbers as whole numbers first, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.
Division of a Decimal by a Whole Number
Divide the decimal number as a normal whole number, placing the decimal point in the quotient directly above the decimal point in the dividend.
Conversion of Units
Decimals are used to convert smaller units of measurement to larger units, such as centimeters to meters or grams to kilograms.
Important Formulas
Board Exam Info
In the Bihar Board Class 7 Mathematics examination, this chapter typically carries around 4 to 6 marks. Common question types include multiple-choice questions on shifting decimal points during multiplication and division, word problems involving money and measurements, and direct calculation sums for multiplying or dividing decimals.
Frequently Asked Questions
Which way does the decimal point move when multiplying by 100?
The decimal point moves two places to the right because 100 has two zeros.
How do I know where to put the decimal point when multiplying two decimals?
Count the total number of digits after the decimal points in both numbers combined, and start counting from the right in your final answer to place the decimal point.
What should I do if there aren't enough digits when shifting a decimal point?
You can add zeros as placeholders to the left or right as needed to complete the required number of places.
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