Andreamathematics

Copy hte following link  in your searcher and solve the exercises ( different operations) https://www.dropbox.com/s/q5rf5dck7p7x6uk/seventh%20grade%20%20decimals.docx?dl=0

 Divide and determine if the numbers are divisible by the given number. a.   21 ÷ 3 = ______     Is 21 divisible by 3? b.  40 ÷ 6 = _______ Is 40 divisible by 6? c.  84 ÷ 7 = _______     Is 7 a factor of 84? 2. Answer the questions. You may need long division.

CONVERSIONS WORD PROBLEMS 1.John rode 2 kilometers on his bike. His sister Sally rode 3000 meters on her bike. Who rode the farthest and how much farther did they ride (answer in km)? 2.Jessica is measuring two line segments. The first line segment is 30 cm long. The second line segment is 500 mm long. How long are the two line segments together? (answer in cm) 3.Lois wants to send a box of oranges to a friend by mail. The box of oranges cannot exceed a mass of 10 kg. If each orange has a mass of 200g, what is the maximum number she can send? 4.Walt grew 10 centimeters in 1 year. He is now 1.6 m tall. How tall was he 1 year ago?   5.Mary buys a reel of thread for sewing. There are 10 m of thread on the real. She uses 210 cm. How much is left on the reel in centimeters? 6.Mr. Martin's Spanish class is 45 minutes long. If it starts at 3:30, what time does it end? 7.Sebastian studies from 3:15 - 4:45. His sister, Sasha studies from 4:30 - 6:15. Who st...

What is an atom and a molecule? What is a chemical formula What is solution What is a mixture What is the difference between solution and mixture? What are homogeneous and heterogeneous substances? What are the molecules of life , explain every one What are cells and how are they formed? Page 139

Solve the  following operation and check if the answer are true( do the process) a)  (12 – 2 ) : ( 1 – 6 ) = – 2                            b))  – 2 + (– 5 – 12 : 3 ) . (– 3 + 4 : 2 ) =   7 c) – 11 + (– 4 + 7 – 11 ) . (– 3 + 6 ) = – 35      d) – 11 – (– 2 + 8 . 4 ) : ( 7 – 4 . 7 + 6 ) =   – 9   e) – 2 – (– 5 – 7 ) : (– 4 + 5 – 3 ) =   – 8           f) – (– 2 . 4 + 12 : 3 ) : ( 11 – 3 . 2 – 1 ) =   1   g)       (– 3 + 5 – 2 ) . (– 8 + 3 ) – (– 5 ) . (– 3 + 7 ) =    20 h)        – (– 3 + 3 . 5 ) : (– 2 . 2 ) + (– 2 ) . (– 1 + 14 : 2 ) =   – 9 Solve the following iperation have inmind( divisions are firsta than additiona and subtraction) a) 5 – 12 : 3 + 7  =   8 ...

Write the following exercises or  print them, (don´t solve them ) we are goning to solve them in class! 1.  In my company the distribution is the following:  Mechanics= 50 Secretaries= 46 Drivers= 40, M and S=30, M and D= 29  S and D=26.  The three activities= 20.  How many employers are there? 2.  ·          In my class the students prefer:  Science= 39 Math= 34 English= 30 S and M= 20 S and E= 18 M and E= 16 The three = 14.  How many students are there? 3. In an interview people answer about their best city for vacation:  Miami= 300 Pans= 250 London= 200  M and P= 150 M and L= 140  L and P= 130 the three= 120  what was the total, do the intersection