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UNIT 4. INTEGERS OR WHOLE NUMBERS.
NAME..................................................................................... GROUP ...........
1.a) Plot A( 2, 3 ) , B( 0, - 1 ) , C( 1 , -2 ) ,D ( - 3, +2) on the Cartesian graph, and write the quadrants:
[pic]
2. Calculate mcd and mcm of 200, 350, 288 decomposing into its prime factors.
3. a)Order from greatest to lowest: -4, 5, -3, -1, 6, 2, 7
b) Opposite ( - 8) = [pic]= [pic]=
c) Represent the numbers that are smaller than 6 and bigger than – 4.
d) Represent the numbers bigger than –5 with an absolute value smaller than 2.
e) Solve the following counts:
5 + 6 = –2 – 4 = – 5 + 7 = 6 – 5 = 3 – 4 – 4 +2 – 1 =
f) Solve the following counts with integers:
• 6 – 12 + 3 – 4 – 3 + 1
• – 25 + 13 + 2 + 7 – 11 – 1
• (– 13 ) + (– 4 ) – ( – 6 ) + 7
• ( 3 – 18 + 9 ) + 2 – ( – 3 – 2 + 7)
• ( +5)·(-6) [ (-6)·(+4)]:( +2)
• [ 6 – 5·6 ] + 20 :(– 4) – ( 1 + 2 )
g) The temperature in Moscow at 9 p.m. is – 3ºC. If the temperature decreases 2 degrees per hour, when will the temperature be -14ºC?.
4. Write the English word for every Spanish word.
|WORD |TRANSLATION |WORD |TRANSLATION |WORD |TRANSLATION |
|Suma | |Línea recta | |Resta | |
|Multiplicación | |Tiempo | |División | |
|Explicación | |Termómetro | |Ejes | |
|Temperatura | |Sol | |Bajo cero | |
|Nieve | |Frío | |Calor | |
|Nacer | |Positivo/negativo | |Morir | |
5. Write the Spanish word for every English word.
|WORD |TRANSLATION |WORD |TRANSLATION |WORD |TRANSLATION |
|Increase | |Absolute value | |Opposite | |
|Factory | |Fridge | |Order | |
|Garage | |Decrease | |Floor | |
|Lift | |Pay | |Both | |
|Salary | |Price | |Lose | |
|Sign | |Building | |Garage | |
6. Write examples of integers in real life.
7. A submarine was situated 250 meters below sea level. If there is a plane 1237 meters high, calculate the distance from the submarine to the plane.
8. Roman Civilization began in 509 B.C. and ended in 476 A.D. How long did Roman Civilization last?
9. In the Sahara Desert one day it was 53ºC. In Siberiaa temperature of -32ºC was recorded. What is the difference between these two temperatures? .
10. Solve the following counts with integers:
a) 3 – 5 – 6 + 3 – 11 + 7
b) ( 2 – 4 – 3 + 1 ) – 6 – 3 · ( – 2 )
c) 5 · ( – 2 + 4 – 3 – 1 ) – 4 · ( 2 – 7 ) + 10 : ( – 2 )
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