Add Rational
Determine the value of the expression: -6.4 + 2.75
-3.65
What is the value of 7.25 − 12.06
-4.81
Determine the value of (-7 1/5) x (1 1/2)
-10.8 or (-10 4/5)
Determine the value of (-12 3/5) ÷ (9/10)
-14
Is the absolue value of a number positive or negative?
Ex. l-24l
turns all numbers positive
Determine the value of -4.8 + (-3 1/2)
-8.55
Determine the value of (6 3/4) − (-2.4)
9.15 or (9 3/20)
Determine the value of the expression: (-3.2)(-2.5)
8
What is the value of -18.9 ÷ (-3)
6.3
Classify this number:
-45
Integer and Rational
A bank account has a balance of -$24.50. A deposit of $18.75 is made. What is the new balance?
A. -$43.25 B. -$5.75 C. $5.75 D. $43.25
B. -5.75
A recipe needs 2.5 cups of flour. You have (1 3/4) cups. How much more flour is needed?
-1.92 or (-1 23/25)
Determine the value of the expression: -8.4 ÷ 2 1/10
-4
Turn Fraction into Decimal
-7 3/8
-7.375
A snack mix recipe uses 1.25 cups of chocolate chips, 3 1/2 cups of pretzels, and 3/4 cup of peanuts. How many cups of snack mix are made?
5 cups
A temperature is -2.5°C. It drops another (3 3/4)°C. What is the new temperature?
-6.25 or (-6 1/4)
A painter has 7 cans of paint. Each can covers 80.6 ft². How many square feet can the painter cover using all the cans?
560.2 ft²
A 24-foot board is cut into pieces that are each 3.2 feet long. How many full pieces can be cut?
8
Turn Decimal into Fraction
1.12
1 3/25
. Mia needs 15 pints of paint. She already has 3 1/2 pints, 2.25 pints, and 1 3/4 pints. How many more pints does she need?
Hint: You add first then do what operation?
7.5 pints
A 30-foot roll of ribbon is used to cut 4 pieces, each 4.75 feet long. How many feet of ribbon remain?
Hint: this is a two step problem first you subtract then what operation?
10ft
A student walks (2 2/5) miles each day for 5 days. How many miles does the student walk altogether?
A. 7.4 mi B. 10.2 mi C. 12 mi D. 14.4 mi
C. 12 miles
A baker has 4.5 cups of flour left in her pantry. She wants to use all of it to bake batch after batch of mini muffins. If each batch of mini muffins requires 3/4 cup of flour, how many full batches of mini muffins can she make?
6
Classify this number
-2.132774369.....
not rational