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SAI NTERNATIONAL SCHOOL


                                                 CBSE CURRICULUM

                                                         Class: VI


                                                    MIND MAP-3.5


                                               SUBJECT: Mathematics


               CH:3-NUMBER PLAY

               SUBTOPIC: PLAYING WITH NUMBER PATTERNS

               Playing with Number Patterns

               When given a set of numbers arranged in patterns, there are often quicker ways to sum them rather
               than adding each number individually. Recognizing patterns can help simplify and speed up calculations.























               PATTERN-a

                     Numbers Involved: 40 and 50
                     Quick Calculation: Notice that 50 is in the center surrounded by 40s. Add the numbers by
                       grouping them or using multiplication to speed up the calculation.
                     Solution: Numbers Involved: 40 and 50

               Step 1: Counting the numbers
               We have 6 "50s" and 19 "40s" in the pattern.

               Step 2: Multiply the numbers
               Multiply the number of 50s by 50:
               6 × 50 = 300
               Multiply the number of 40s by 40:
               19 × 40 = 760
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