Adding rational numbers
3 + -7 =
-4
-3 1/3 - 5/6 =
-4 1/6
Angelo has $5.50 for lunch. He guys a cookie for $1.05 and a drink for 1.45. How much money does Angelo have left?
$3.00
2.5 x (-1.20) =
-3
14.28 divided by 4.2 =
3.4
-5 + 10 =
-5
1/3 - (-1/3) =
2/3
Devon had his two friends over for pizza. Devon ate 1/4 of the pizza. One of his friends ate 3/8 of the pizza and the other friend ate 1/8 of the pizza. How much of the pizza is left?
1/4
-3 x 2 =
-6
3/10 divided by 2/4 =
6/40
-15 + 90 =
75
4 1/2 - 5 1/4 =
- 3/4
Nike brought a bag of candy to school. He started with 50 pieces, but gave out 15 pieces to EACH of his TWO friends. His nice math teacher gave Nike 3 pieces of candy. How much does he have now?
23 pieces
-4.2 x -5 =
21
In what category dose 6/11 belong is it
A. integers
B. Rational numbers
C. Natural Numbers
B. Rational numbers
-2.61 + (-6.88) =
-9.49
-8.4 - 6.7 =
-15.1
Chris decided to do his history homework a little bit each night. On the first night he did 1/5 of the homework, the second night he completed 1/4 of the homework, and the third night he worked 1/2 of the homework. How much of the homework has Chris completed?
19/20 or .95
2.5 x (-1.2) =
-3
What is the reciprocal of 5
1/5
-9 1/6 + (-2 1/6) + (-1 5/6) =
13 1/6
-20.5 - (-20.5) =
0
Ms. Higgins learns how to fly a plane. She starts on the ground and ascends (goes UP) 500 feet, then descends (goes DOWN) 150 feet, then ascends 50 feet. How high up is Ms. Higgins plane now?
400 feet
1/3 x 2/5 =
2/15
What is the reciprocal of 4/5
5/4