Page 104 - Math Genius C3
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E:\Working\Orange_Education\Math_Genius_3\Open_Files\CHAP_05
\ 01-Oct-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________
Gamified Learning Collaborative Learning Experiential Learning
objective: To divide numbers involving tens and hundreds mentally
Materials Required: Sets of three small cardboard pieces and a marker pen
Procedure:
The teacher divides the class into groups of three.
The teacher writes three division problems (as shown here for an example) on
each set of cardboard pieces.
Each group gets one set of three division problems. 9 ÷ 3 90 ÷ 3 900 ÷ 3
The first member of the group finds the quotient
of 9 ÷ 3 as 9 ÷ 3 = 3.
Other members first guess the quotients of the remaining two division problems.
Then the members use a shortcut in dividing tens and hundreds by dividing the
non-zero digits and then adding the zeros as follows:
90 ÷ 3 = 30 (9 ÷ 3 = 3 and then add a zero to ‘3’ to make it ‘30’)
900 ÷ 3 = 300 (9 ÷ 3 = 3 and then add 2 zeros to ‘3’ to make it ‘300’)
Every correct answer gets 2 points.
Repeat the activity with the other sets of division problems 5 times.
The student with the highest score wins.
maths fun Critical Thinking
The jungle school has organised a jumping race to select the new king. Four
animals participate in the race. They have to jump on a mathematical track. The animal
with the highest score will win the race. Find the winner of the race.
×4 ÷6 –3 +9
1.
12
÷8 ×5 –31 +11
2.
56
÷8 ×9 +20 –46
3.
32
÷10 +8 ×3 –36
4. 120
Who is the new king of the jungle? ___________________.
102 Mathematics-3
