DON BOSCO SCHOOL, BERHAMPORE Class II MATHEMATICS (Dt:22/04/2020) Ch-1 NUMBERS 1 TO 100 REVISION Important points:

• Ascending order: Numbers increasing from smallest to largest number are said to be in ascending order. Example: 10,20,30,40

• Descending order: Numbers decreasing from largest to smallest number are said to be in descending order. Example: 40,30,20,10

• Odd numbers: Odd numbers are numbers ending with 1,3,5,7,9. Examples: 1,3,5,7,9,31,43,45,57,89.

• Even numbers: Even numbers are numbers ending with 0,2,4,6,8. Examples: 10,22,34,56,98.

• Ordinal number: An ordinal number is a number that tells the position of something in a list like first, second, third and so on.

• Seven days of the week:

• Twelve months of the year:

Note:

• Students are asked to write down the answers in their Mathematics Text Book with pencil as uploaded and then keep practicing them in your rough Maths copy.

• Math Lab Activity of page 18 will be solved by the students themselves.

• Students need to revise the tables from 1 to 10 repeatedly.

• Practice addition and subtraction of numbers in home. Addition with carry will be explained in class as the school reopens if students have difficulty to understand them.

Subject Teacher: Ms Aindrila Karmakar