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CTET Class I to V 2012 Nov Paper
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Question : 59
Total: 150
Hamida always allow her students to observe the number pattern and to form conjectures on their own in order to enhance their mathematical abilities. She wrote the following problems on board and asked the students to write the answers:
21 ÷ 7 =
2.1 ÷ 0.7 =
0.21 ÷ 0.07 =
0.021 ÷ 0.007 =
Through the set of questions, she wants the students to observe that
if both the divisor and the dividend are decreased by power of 10, the quotient is also decreased by the power of 10
as one factor is divided by 10 and the other is multiplied by 10, the product remains same
as one divisor is decreased by 10 and the other is increased by power of 10, the product remains same
if both the divisor and the dividend are increased or decreased by power of 10, the quotient remains the same
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Solution:
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