Set G: Decimal, Fraction and Percent - Province of Manitoba
Developing Conceptual Understanding of Number
Set G: Decimal, Fraction
and Percent
Carole Bilyk cbilyk@gov.mb.ca
Wayne Watt wwatt@
Decimal, Fraction and Percent 1
Vocabulary
? decimal point
Notes
? For #1, students should use estimation to find the answer. For example, in 1a), the answer is approximately 2 ? 2 or 4 so 3.960 is the only answer close to 4.
Answers
1. a) 3.960 b) 9.39 c) 3.48936 d) 83.75
2. a) < b) > c) > d) >
3. 6.4 + 1.9 > 8 because 1.9 is approximately 2 and 6.4 + 2 = 8.4
4.
a) 0.5, 5
1 or , 50%
10 2
b) 0.25, 25 or 1 , 25% 100 4
3 c) 0.75, , 75%
4
8G-1
Decimal, Fraction and Percent 1
1. Without finding the answer, place the decimal point in the correct position to make a true statement. a) 2.2 x 1.8 = 3960
b) 6.4 + 2.99 = 939 c) 16.4 ? 4.7 = 348936 d) 100.15 ? 16.4 = 8375
2. Use < or > to make each statement correct.
a) 362 x 0.8 362
b) 2.2 x 1.8
3
c) 160 ? 9.8 16 d) 14.98 ? 0.98 14
3. Without finding the exact answer, determine whether 6.4 + 1.9 is greater than or less than 8. Explain your thinking.
4. Express each given number as a decimal, fraction, and percent. a) 0.5 b) 25%
3 c)
4
8G-1
Decimal, Fraction and Percent 2
Vocabulary
Notes
Answers
1. a) 75 or 3 , 0.75, 75% 100 4
b) 4 or 2 , 0.4, 40% 10 5
c) 3 or 1 , 0.25, 25% 12 4
2. a) 11.875 b) 101.42 c) 323.500 d) 136.90
3. a) 6 b) 0 c) 9 d) 7
4. It is less than 349 because you are multiplying by a positive number less than one.
8G-2
Decimal, Fraction and Percent 2
1. Give the fraction, decimal, and percent value for the shaded part of each figure. a)
b)
c)
2. Without finding the answer, place the decimal point in the correct position to make a true statement. a) 28.5 ? 2.4 = 11875 b) 16.41 + 3.94 + 81.07 = 10142 c) 647 x 50% = 323500 d) 160 ? 19.1 ? 4 = 13690
3. For the number 2607.19 what digit: a) is in the hundred's place? b) represents tens? c) is in the hundredth's position? d) represents ones?
4. Is 349 x 0.9 greater than, less than, or equal to 349? How do you know?
8G-2
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