Page 64 - Algebra 1

Add, subtract, multiply, or divide. 1. _1 + _3
2. 15_1 - 7_4 (SB 3) 3 5
4. 3_2 ÷ 1_2 (SB 3) 5 3
6. 2_1 · 1_1 (SB 3) 3 4
8. 20.46 ÷ 2.2 (SB 2)
(SB 3) 2 5 3. 3_2 · 2_1
(SB 3) 3 4
5. 78_2 -14_7
(SB 3) 5 10
7. 10.2 · 3.15 (SB 2)
a. Which investment grew more? SOLUTION
Find the differences and compare.
Investment B grew more.
b. In which quarter did Investment B grow the most?
SOLUTION
$260.66 - $250.00 = $10.66 $274.22 - $260.66 = $13.56 $268.92 - $274.22 = -$5.30 $290.07 - $268.92 = $21.15
The greatest difference is $21.15, which occurred in the 4th quarter.
Simplify.
(Ex 1)
a. c.
(Ex 2)
d.
(Ex 3)
e.
(Ex 4)
Investment A
Investment B
$262.99 - $250 = $12.99
$290.07 - $250 = $40.07
Lesson Practice
_4 +_2 -_5 b. 16.21-21.54+12.72 999
Order the numbers from least to greatest.
_3 , -1, 0.85, _5 48
Complete the comparison. Use <, >, or = . ___
3.2 + (-2.8) - 5.2 7 - 5 + (- 11 ) 12 12 12
Jonah ran a race in 32.68 seconds. Jarrod finished 1.92 seconds before Jonah. Gayle finished 3.01 seconds after Jonah. How many seconds did it take Gayle to run the race?
Practice
Distributed and Integrated
Lesson 10 49