O.7

식의 계산 종합

2분기 (12~2월)

동류항 정리, 분배법칙, 일차식의 덧셈과 뺄셈 종합

난이도

보통

난이도

문제 수

예제 포함답안지 포함

@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 7 Math Simplifying Expressions Review Skill O.7 \cdot Expressions \cdot ★★☆ Medium \cdot Quarter 2 Name Date Score / 12 Scan for answers Simplify each expression. Example - 3 (2 x - 5) = - 6 x + 15 Think: Multiply each term inside the parentheses by - 3 : - 3 \times 2 x = - 6 x and - 3 \times (- 5) = 15 . 1 4 (2 a - 6) 2 - 2 (5 x + 8) 3 4 (a + 4) 4 8 (6 a + 4) 5 4 (2 k - 6) 6 - 6 (2 x + 1) 7 5 (2 y - 3) 8 9 (x - 7) 9 7 (5 n - 9) 10 - 9 (4 a + 4) 11 7 (3 y - 3) 12 8 (9 x - 4) Daniel Math Academy \cdot danielmath.com Worksheet # 8ip5wkx \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 7 Math Answer Key O.7 Simplifying Expressions Review \cdot ★★☆ Medium 1 8 a - 24 2 - 10 x - 16 3 4 a + 16 4 48 a + 32 5 8 k - 24 6 - 12 x - 6 7 10 y - 15 8 9 x - 63 9 35 n - 63 10 - 36 a - 36 11 21 y - 21 12 72 x - 32 Daniel Math Academy \cdot danielmath.com Worksheet # 8ip5wkx \cdot Answer Key \cdot Page 2 / 2

O. 식의 계산스킬 7개