OneStep Equations and Inequalities Chapter Six Addition and

One-Step Equations and Inequalities Chapter Six

Addition and Subtraction • 15 + x = 31 -15 x = 16 • d – 11 = 47 + 11 =+11 d =58 • n + 9=27 -9 -9 n = 18 • r – 8 = 13 +8 +8 r = 21

Alright, let’s try it!! x + 5 = 19 w – 14 = 89 b + 13 = 26 17 + y = 42 f + 15 = 45 m – 18 = 13

Multiplication and Division • 5 a = 45 5 5 a=9 • 2 x = 26 2 2 x = 13 • n/9 = 4 (9) n/9 = 4(9) n = 36 • x/3 = 7 (3) x = 21

Alright, let’s try it!! 10 y = 80 h/6 = 8 12 a = 60 r/15 = -10 -3 e = 36 w/4 = 19

Word Problems 1. There were 7 roses in the vase. Nancy cut some more roses from her flower garden. There are now 15 roses in the vase. How many roses did she cut ? 2. Joan is baking a cake. The recipe calls for 9 cups of flour. She already put in 3 cups. How many more cups does she need to add ? 3. Sam found 89 seashells on the beach, he gave Fred some of his seashells. He has 24 seashell left. How many seashells did he give to Fred ? 4. Tom received 80 dollars for his birthday. He went to a sporting goods store and bought a baseball glove, baseball, and bat. He had 14 dollars left over, how much did he spent on the baseball gear ?

Solving addition and subtraction inequalities • e + 5 < 97 -5 -5 e < 92 • 34 + g > 89 -34 g > 55 • x – 2 > 12 + 2 +2 x > 14 • f – 12 25 + 12 +12 f 37

Last one, let’s try it!! h + 12 < 87 i – 13 > 39 14 + j < 28 k – 939 27 m + 29 < 312 n – 825 56

Works cited • Passing the ISTEP+ Graduation Qualifying Exam in Mathematics, American Book Company • Picture 1: http: //eveil. haplosciences. com/math. gif • Picture 2: http: //www. lifelearning. org/images/math 0 011. gif