Vision Weekly News

39 qldkoreanlife.com.au FRI. 28. OCTOBER. 996 가로열쇠 1.롯데의투수.무쇠팔 3.얼굴에난수염을깎는도구 5.극진하고융숭한대접을이르는말 7.종이나비닐로만든주머니 9.뛰어나거나이름난물건 10.눈을보호하기위하여쓰는안경 11.전파의통로.○○파,공간파 13.능력은부족하면서도남에게지기싫어하는마음 14.여름철대표과일 16.가을바람에떨어지는나뭇잎 18.둘로똑같이나눔 19.손오공이나오는소설 세로열쇠 1.가장높은봉우리 2.기본적인규칙이나법칙 3.서로대면하여만나봄 4.즐기고좋아하는음식물 6.기둥과기둥사이에건너지른큰들보 8.적의사정과나의사정을자세히앎 9.맑은거울과고요한물 12.상처로들어간균에감염되는질병 13.오라비와누이 15.이마로무엇을세게받아치는짓 16.밤과낮의길이가같아지는절기 17.증표를인쇄한편지용지 낱말퍼즐 *정답은아래에있습니다. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 김선생 수학 이번호 정답 스도쿠 이번호 정답 낱말퀴즈 이번호 정답 *문제는40p에있습니다. Solve the followings (1-4) 1 − 3 + 7 = 6 − 29 ( 6 , 7 학년 ) 2 2 −3 + 1 − 1 = − 5 3 − 2 + 6 ( 7, 8 학년 ) 3 3 0 − 3 − 2 2 2 + = 2 × 4 0 2 + 1 − 3(2 − ) ( 8, 9 학년 ) 4 3 − 3 = 2 4 − 10 ( 9, 10 학년 ) Factorise the followings (5-8) 5 2 − 6 + 8 ( 6, 7 학년 ) 6 2 − + − 2 ( 8 학년 ) 7 25 2 − 30 + 9 2 ( 9 학년 ) 8 16 2 − 24 + 9 2 − 100 ( 10 학년 ) (9) Smith went to a shop, spent half of his money and then spent $15 more. He went to a second shop, spent half of his remaining money and then spent $5 more. But he then had $10 left. How much was his money from the beginning ? 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answer ) 1 − 3 + 7 = 6 − 29 − 9 = − 36 = − 36 −9 ∴ = 4 2 2 −3 + 1 − 1 = − 5 3 − 2 + 6 − 6 + 2 − 1 = −15 + 10 + 6 − 6 + 15 = 16 − 1 9 = 15 ∴ = 5/3 3 3 0 − 3 − 2 2 2 + = 2 × 4 0 2 + 1 − 3(2 − ) 1 − 3 − 2 4 + = 2 × 1 2 + 1 − 3(2 − ) − 2 − 8 − 2 = 4 + 2 − 6 + 3 −4 − 8 = 7 − 4 −4 − 7 = − 4 + 8 −11 = 4 ∴ = − 4/11 4 3 − 3 = 2 4 − 10 3 − 3 = 16 − 10 3 − 3 = 6 3 = 9 ∴ = 2 5 2 − 6 + 8 = 2 ( − 2 + 4 ) 6 2 − + − 2 = − 1 + (1 − ) = − 1 − ( − 1) = ( − 1) − 7 25 2 − 30 + 9 2 = ( 5 ) 2 − 2 5 3 + ( 3 ) 2 = ( 5 − 3 ) 2 8 16 2 − 24 + 9 2 − 100 = (( 4 ) 2 − 2 4 ( 3 ) + 3 2 ) − 10 2 = ( 4 − 3 ) 2 − 10 2 = 4 − 3 − 10 { 4 − 3 + 10} = 4 − 3 − 10 ( 4 − 3 + 10) (9) thinking backward 10 left  start money = $10 spent more $ 5  plus $5  10 + 5 = 15 half  double  15 × 2 = 30 ( 15 is half of 30 ) spent more $ 15  plus $15  30 + 15 = 45 half  double  45 × 2 = 90 ( 45 is half of 90 ) Solve the followings (1-4) 1 − 3 + 7 = 6 − 29 ( 6 , 7 학년 ) 2 2 −3 + 1 − 1 = − 5 3 − 2 + 6 ( 7, 8 학년 ) 3 3 0 − 3 − 2 2 2 + = 2 × 4 0 2 + 1 − 3(2 − ) ( 8, 4 3 − 3 = 2 4 − 10 ( 9, 10 학년 ) Factorise the followings (5-8) 5 2 − 6 + 8 ( 6, 7 학년 ) 6 2 − + − 2 ( 8 학년 ) 7 25 2 − 30 + 9 2 ( 9 학년 ) 8 16 2 − 24 + 9 2 − 100 ( 10 학년 ) (9) Smith went to a shop, spent half of his money and then spen He went to a second shop, spent half of his remaining money an But he then had $10 left. How much was his money from the be 김선생수학알제브라연습문제 (268) ( Exercise ( Answer ) 1 − 3 + 7 = 6 − 29 − 9 = − 36 = − 36 −9 ∴ = 4 2 2 −3 + 1 − 1 = − 5 3 − 2 + 6 − 6 + 2 − 1 = −15 + 10 + 6 − 6 + 15 = 16 − 1 9 = 15 ∴ = 5/3 3 3 0 − 3 − 2 2 2 + = 2 × 4 0 2 + 1 − 3(2 − ) 1 − 3 − 2 4 + = 2 × 1 2 + 1 − 3(2 − ) − 2 − 8 − 2 = 4 + 2 − 6 + 3 −4 − 8 = 7 − 4 −4 − 7 = − 4 + 8 −11 = 4 ∴ = − 4/11 4 3 − 3 = 2 4 − 10 3 − 3 = 16 − 10 − 3 = 6 3 = 9 ∴ = 2 5 2 − 6 + 8 = 2 ( − 2 + 4 ) 6 2 − + − 2 = − 1 + (1 − ) = − 1 − ( − 1) = ( − 1) − 7 25 2 − 30 + 9 2 = ( 5 ) 2 − 2 5 3 + ( 3 ) 2 = ( 5 − 3 ) 2 8 16 2 − 24 + 9 2 − 100 = (( 4 ) 2 − 2 4 ( 3 ) + 3 2 ) − 10 2 = ( 4 − 3 ) 2 − 10 2 = 4 − 3 − 10 { 4 − 3 + 10} = 4 − 3 − 10 ( 4 − 3 + 10) (9) thinking backward 10 left  start money = $10 spent more $ 5  plus $5  10 + 5 = 15 half  double  15 × 2 = 30 ( 15 is half of 30 spent more $ 15  plus $15  30 + 15 = 45 half  double  45 × 2 = 90 ( 45 is half of 90 His money from the beginning is $90. Solve the followings (1-4) 1 − 3 + 7 = 6 − 29 ( 6 , 7 학년 ) 2 2 −3 + 1 − 1 = − 5 3 − 2 + 6 ( 7, 8 학년 ) 3 3 0 − 3 − 2 2 2 + = 2 × 4 0 2 + 1 − 3(2 − ) ( 8, 9 학년 ) 4 3 − 3 = 2 4 − 10 ( 9, 10 학년 ) Factorise the followings (5-8) 5 2 − 6 + 8 ( 6, 7 학년 ) 6 2 − + − 2 ( 8 학년 ) 7 25 2 − 30 + 9 2 ( 9 학년 ) 8 16 2 − 24 + 9 2 − 100 ( 10 학년 ) (9) Smith went to a shop, spent half of his money and the spent $15 more. He went to a second shop, spent half of his remaini g money and then spent $5 more. But he then had $10 left. How much was his money from the beginning ? 김선생수학알제브라연습문제 (268) ( Exercise of Algebra ) ( Answwer ) 1 − 3 + 7 = 6 − 29 − 9 = − 36 = − 36 −9 ∴ = 4 2 2 −3 + 1 − 1 = − 5 3 − 2 + 6 − 6 + 2 − 1 = −15 + 10 + 6 − 6 + 15 = 16 − 1 9 = 15 ∴ = 5/3 3 3 0 − 3 − 2 2 2 + = 2 × 4 0 2 + 3(2 ) 1 − 3 − 2 4 + = 2 × 1 2 + 1 − 3( − ) − − 8 − 2 = 4 + 2 − 6 + 3 −4 − 8 = 7 − 4 −4 − 7 = − 4 + 8 −11 = 4 − 4/11 4 3 − 3 = 2 4 − 10 3 3 = 16 − 10 3 − 3 = 6 3 = 9 ∴ = 2 5 2 6 + 8 = 2 ( − 2 + 4 ) 6 2 − + − 2 = − 1 + (1 − ) = − 1 − ( − 1) = ( − 1) − 7 5 2 − 30 + 9 2 = ( 5 ) 2 − 2 5 3 + ( 3 ) 2 = ( 5 − 3 ) 2 8 16 2 − 24 + 9 2 − 100 (( 4 ) 2 − 2 4 ( 3 ) + 3 2 ) − 10 2 ( 4 3 ) 2 10 2 = 4 − 3 − 10 { 4 − 3 + 10} = 4 − 3 − 10 ( 4 − 3 + 10) (9) thinking backward 10 left  start money = $10 spent more $ 5  plus $5  10 + 5 = 15 half  double  15 × 2 = 30 ( 15 is half of 30 ) spent more $ 15  plus $15  30 + 15 = 45 half  double  45 × 2 = 90 ( 45 is half of 90 ) His money from the beginning is $90.