Mathematics Activity, proposed for students in the sixth year of elementary school, with questions about decimal numbers.
This activity is available for download in an editable Word template, ready to print in PDF and also the completed activity.
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SCHOOL: DATE:
PROF: CLASS:
NAME:
1) Calculate the value of the expressions below:
a) (1.44: 0.3 − 0.2: 0.5) ∙ 1.06
b) (0.5)² ∙ (0.2)³
c) (0.9)²: 0.027+ (1−0.3)²
d) (1 - 75/100)2
2) The building on Rua Augusta is 419 meters high, with 60 floors of residential area, 20 floors with offices, 15 floors for hotels and the remaining 5 floors with restaurants. Knowing that all floors are the same height, determine the total height for the residential area.
A:
3) Determine the value of k on the equalities below:
a 4.2 ∙ k = 13.272
b 8.7 - k = 3.56
4) Answer by what decimal number should we multiply 485 to get 0.0485?
a) 0.0001
b) 0.1000
c) 1,000
d) 0.1010
5) Write in descending order the decimal numbers below using the > (greater than) sign.
a) 1.112; 1,1035; 1,121
b) 7.2; 7,198; 7,23
c) 0.04; 0,042; 0,039
6) Answer by how much should you multiply the half of 0.25 to get the unit as a result?
a) 7
b) 8
c) 9
d) 10
7) At Paula's house, the electric iron has 2.3 kilowatts of power, and the shower, 2.8 kilowatts. After 30 days, what will be the total energy consumption of the two appliances, in kilowatt-hours, knowing that they work daily for half an hour and that: consumption = power ∙ time (hour)?
A:
By Rosiane Fernandes Silva - Graduated in Literature and Pedagogy - Postgraduate in Special Education.
At answers are in the link above the header.
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