الفصـــــــــــل الاول

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ﺔﺤﻴﺤﺼﻟاد اﺪﻋﻹاول :ﻻا ﻞــــــــــــــــــــــــﺼﻔﻟاC o r r e c t s e t t i n g s: ﻢـــــــــــﻴﻤـــﺼﺗ ﺮــــﻗﺎـــﺑ ﺮــــــﻔﻌﺟ

010 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim- ﻲﻨـــــــــــﻫﺬﻟب اﺎــــــــــﺴﺤﻟ- اﻊﻳزﻮﺘﻟاdistributionالﺪﺑﻻا eternityﻊﻤﺠﺘﻟا Gatheringسﺎﺳا BasisThisاسى -ﻮــــــــــــــــــﻘﻟا -( 10 ) دﺪﻌﻟت اﺎﻔﻋﺎﻀﻣد وﺪﻌـــﻟا ﺔﺑﺎﺘﻛ اي 5 × 10³ اس ﻰﻠﻋ يﻮﺘﺤـــﺗ- ﺔــــــــــــــــــــﻴﻤﻠﻌﻟرة اﻮــــــــــــﺼﻟا -- ﺔــــــــــــــــــــﻴﻤﻗﺮﻟرة اﻮــــــــــــﺼﻟا -5000 رﺎﻔﺻأ ﻰﻠﻋ يﻮﺘﺤﻳ دﺪﻋ

5³³10⁴= 10 × 10 × 10 × 10 = 10008¹ = 89⁰ = 136 = 6 × 6 = 6²81 = 9 × 9 = 9²81 = 3 × 3 × 3 × 3 = 3⁴5000ﺔــــــــــﻴﻤﻗرة رﻮﺻ5 × 10³ﺔــــــــــﻴﻤﻠﻋ رةﻮﺻ640,000640,000 سﻷا سﺎﺳﻻا5³³= 5 × 5 × 5 = 25 × 5 = 125= 5 × 5 × 5 = 25 × 5 = 125ى :-ﻮﻘﻟل اﺎﻤﻌﺘـــﺳﺎﺑ ﺔﻴﻟﺎﺘﻟاد اﺪﻋﻻا ﺐﺘﻛا64 × 10⁴64 × 10⁴ScientificScientificDigitalDigital020 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarimﺢﺿر واﺎﺻ؟؟

030 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim01(37 + 44) + 6 = 37 + (44 + 6) = 8718 + (12 + 9) = (18 + 12) + 9 = 30 + 9 = 39020304(37 + 44) + 6 = 37 + (44 + 6) = 87(13 × 4) × 2 = 13 × (4 × 2) = 104059 + 11 = 11 + 9 = 20066 × 24 = 6 × (20 + 4) = (6 × 20) + (6 × 4) = 120 + 24 = 144070712 + 41 = 41 + 12 = 53 5 × 13 = 13 × 5 = 65 (21 + 33) + 9 = 21 + (33 + 9) = 21 + 42 = 63 (10 × 14) × 3 = 10 × (14 × 3) = 10 × 42 = 420 6 × 24 = 6 × (20 + 4) = (6 × 20) + (6 × 4) = 120 + 24 = 144 7² = 7 × 7 = 49 4⁰ = 1111213141618-: ﺔﻠــــــــــــــــــــــﺜﻣأ0203040508 10³ = 10 × 10 × 10 = 1000 16¹ = 16 81 = 3 × 3 × 3 × 3 = 3⁴ 128 = 2 × 2 × 2 × 2 × 2 × 2 × 2 = 2⁷ 24 × 10⁶ = 24,000,000 1,350,000 = 135 × 10⁴-: ﻚــــــــــــــــــــــﻤﻬﻓ ﻦﻣ ﺪﻛﺄــــــــــــــﺗ

1804051؟ ﻦـــــــــــــــﻣ ﺺﻠﺨﺗا2تﺎﻴﻠﻤﻌﻟا ﺐﻴﺗﺮﺗ ﺐﺴﺣ ﻞﺣاتﺪﺟاس ان وﻮﻗﻷأ- ا تﺪﺟان و ﺔﻘﻠﻄﻤﻟا ﺔﻤﻴﻘﻟب- ا ﺪﺟأن و ﻲﻌﻴﺑﺮﺘﻟر اﺬﺠﻟج- ا ﺪﺟس ان وﻷد- ا0 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim2 رسﺪــــﻟا ت :-ﺎﻈﺣﻼــــــــــــــــــﻣ(4 × 8) − 3 = 32 − 3 = 291 14 − 6 + 40 = 8 + 40 = 4823 |−4| − 3|−7| + 13 = 4 − 3 × 7 + 13 = 24 − 21 + 13 = 3 + 13 = 164 (5 − 7) × (6 + 4)² − 30 = (−2) × 10² − 30 = (−2 × 100) − 30 = −200 − 30 = −230 ﺔﻴﻘﺒﺳﻻا ﺐﺴﺣ بﺮﻀﻟوا ﻪﻤﺴﻘﻟأ- ا ﺔﻴﻘﺒﺳﻻا ﺐﺴﺣ حﺮﻄﻟوا ﻊﻤﺠﻟب- ا

1805050 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim-: ﻚﻤــــــــــــــــــﻬﻓ ﻦﻣ ﺪـــــــــــــــــــﻛﺄﺗ 1) 45 - 12 + 32 = 33 + 32 = 65 2) 5 × 4 - 82 = 20 - 82 = -62 3) (24 - 6) × (30 - 28)³ = 18 × 2³ = 18 × 8 = 144 6) (56 ÷ 7) + (3 × (-8)) - (2 × 13) = 8 + (-24) - 26 = -16 - 26 = -429) |-81| ÷ |-3| + 5 × 4 20 + 3 ÷ 81 = 20 + 27 = 47 =- ﺔــــــــــــــــــــــــــﻳﺮﺒﺠﻟرات اﺎــــــــــــــــــــــــــﺒﻌﻟا -- ﺔــــــــــــــــــــــــــﻳﺮﺒﺠﻟرات اﺎــــــــــــــــــــــــــﺒﻌﻟا -- A l g e b r a i c e x p r e s s i o n s -ﻦﻣ ﺮـــــﺜﻛأ (1 (2 (3 (4 ﻦﻣ ﻞــــﻗأﻦﻣ ﻞــــﻗأ لﺎـــــــــــﺜﻣألﺎـــــــــــﺜﻣأ ﻰﻠﻋ مﻮﺴﻘﻣﻰﻠﻋ مﻮﺴﻘﻣ { + }{ + } { - }{ - } { × }{ × } { ÷ }{ ÷ }

0618050 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim- ﺔــــــــــــــــــــــــــﻳﺮﺒﺠﻟرات اﺎــــــــﺒﻌﻟا ﻲﻓ ﺾﻳﻮﻌﺘﻟ- ا- ﺔــــــــــــــــــــــــــﻳﺮﺒﺠﻟرات اﺎــــــــﺒﻌﻟا ﻲﻓ ﺾﻳﻮﻌﺘﻟ- ا- A l g e b r a i c e x p r e s s i o n s -تﺎﻈﺣﻼﻣدﺪﻌﺑ ﺮﻴﻐـــــــــــــــــــــــــــــــــــﺘﻤﻟل اﺪﺑ ضﻮﻌﻧ ﺪﺟان و ﻖﻠﻄﻤﻟس واﻻا ﻦﻣ ﺺﻠﺨﺘﻧ تﺎــــــــــــــــــــﻴﻠﻤﻌﻟا ﺐﻴﺗﺮﺗ ﻞﺤﻟا ﻲﻓ ﻊﺒﺘﻧM + 15 = ﺮﺸﻋ ﺔﺴﻤﺨﺑ M ﻦﻣ ﺮﺒﻛأ (1 L - 10 = ةﺮﺸﻌــــــــــــــــــــــــﺑ L ﻦﻣ ﻞﻗأ (2 4² - (y + 3) = 2 أس ﺔﻌﺑرﺄﺑ (y + 3) ﻦﻣ ﻞﻗأ (3 5 + (x - 2) = ﺔﺴﻤﺨـــــــــﺑ (x - 2) ﻦﻣ ﺮﺒﻛأ (4 ³(F + 6)4 = 3 أس (F + 6) لﺎﺜﻣأ ﺔﻌﺑأر (5 8 ÷ (k - 3) = 8 ﻰﻠﻋ مﻮـــــــــــﺴﻘﻣ (k - 3) (6- ﺔــــــــــــــــــــــــــﻳﺮﺒﺠﻟرات اﺎــــــــﺒﻌﻟا ﻦــــﻋ - ﺔـﻠـﺜـﻣأ ﺔـﻠـﺜـﻣأ- ﺔــــــــﻳﺮﺒﺠﻟرات اﺎــــــــﺒﻌﻟا ﻲﻓ ﺾﻳﻮﻌﺘﻟا ﻦــــﻋ - 1) 3x - 5² , x = 20 3 × 20 - 25 60 - 25 = 352) 6 ( y - 3 ) - 52 , y = -4 6(- 4 + 3 ) - 52 ( 6x - 1 ) -52 -6 - 52 = -6 + ( -52 ) =-58 X = 20ﺲﻧﻮﻳ ﺔﻴــــﺧوأ ﻒﺳﻮﻳ

2) 3²y ÷ (-3y) - 36 ÷ (2y) 9x - 9 ÷ (3x - 9) - 36 ÷ (2x - 9) -81 ÷ 27 - 36 ÷ (-18) -3 - (-2) = -10718050 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim1) | -18 |is+ x² - 99 = 18 + 9² - 99 = 18 + 81 - 99 = 99 - 99 = 0 , X = 9ﻢﻬــــــــــــﻔﻠﻟﻢﻬــــــــــــﻔﻠﻟ- 3 + 2 = -1»»ة :-ﺪﺣاﻮﻟة اﻮﻄﺨﻟت ذات اﻻدﺎﻌﻤﻟا ﻞﺣة :-ﺪﺣاﻮﻟة اﻮﻄﺨﻟت ذات اﻻدﺎﻌﻤﻟا ﻞﺣ لﻮﻬﺠﻣ ) اﺪﻋ { حﺮﻃ ﻰﻘﺒﺗ ل اوﻮﺤﺘﺗ ﺎﻬﻌﻴﻤﺟ } حﺮﻄﻟوا ﻊﻤﺠﻟت اﻻدﺎﻌﻣ - A . ( ﺐﺟﻮﻣ دﺪﻋ - ﺐﻟﺎﺳ دﺪﻋ - اﺪﻋﺎﻣ { ﺔﻴﻠﻤﻌﻟا ﺲﻜﻋ لﻮﺤﺘﺗ ﺎﻬﻌﻴﻤﺟ } بﺮﻀﻟوا ﺔﻤﺴﻘﻟت اﻻدﺎﻌﻣ - A . ( دﺪﻋ ل =ﻮﻬﺠﻣ د ÷ﺪﻋ)

2y - 8 = |-30| y = 30 + 8 → y = 381x + 25 = 128 x = 128 - 25 x = 1033 45 - Z = 9 45 + 9 = Z → Z = 364 4 × k = 160 k = 160 ÷ 4 k = 405 X ÷ 7 = 12 X = 12 × 7 X = 84080 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim6 42 ÷ y = -6 → 42 = -6 xy 42 ÷ ( -6 ) = 42 ÷ ( -6 ) = y = -7 = y 7 - = y..ﺎﻨــــــــــﻫ ﺐﺘﻛأ..ﺎﻨــــــــــﻫ ﺐﺘﻛأM a k e s u r e y o u u n d e r s t a n d

ﻞﻣاﻮــــــــــــــــــــــــﻌﻟا ﻦﻣ زوج ) ﻞﻛ ﻦﻣ اًﺪﺣوا ﺎًﻠﻣﺎﻋ ﺬﺧﺄﻧ ﻲﻌــــــــــــــــﻴﺑﺮﺘﻟر اﺬﺠﻟا ﻲﻓ . ( ﺔــــــــــﻬﺑﺎﺸﺘﻤﻟا ﻞـــــــــــــﻣاﻮﻋ ﺔﺛﻼﺛ ) ﻞﻛ ﻦﻣ اًﺪﺣوا ﺎًﻠﻣﺎﻋ ﺬﺧﺄﻨﻓ ﻲﺒﻴﻌﻜــــــــــــــﺘﻟا رﺬﺠﻟا ﻲﻓ ﺎﻣأ . ( ﺔـــــــــــــﻬﺑﺎﺸﺘﻣ3 نﻮﻜـــــــــــــــــــــــــــــــــــــﻴﻓ ، ( 2 ) ةﻮــــــــــــــــــــــﻄﺨﻟا ﻲﻓ دةﺪﺤﻤﻟا ﻞﻣاﻮﻌﻟب اﺮـــــــــــــــــﻀﻧ ر .ﺬﺠﻟا ﻮﻫ بﺮﻀﻟا ﻞﺻﺎﺣ>090 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim« ﻲﺒﻴﻌﻜﺘﻟر اﺬﺠﻟوا ﻲﻌﻴﺑﺮﺘﻟر اﺬﺠﻟا »« ﻲﺒﻴﻌﻜﺘﻟر اﺬﺠﻟوا ﻲﻌﻴﺑﺮﺘﻟر اﺬﺠﻟا » S q u a r e r o o t a n d c u b e r o o t1ﺔـــــــــــــﻠﻣاﻮﻋ ﻰﻟد إﺪــــــــــــــﻌﻟا ﻞﻠﺤـــــــــــــﻧ ﻲﺒﻴﻌﻜﺘﻟأو ا ﻲﻌﻴﺑﺮﺘﻟا رﺬﺠﻟد اﺎﺠﻳﻹ :ﻲﻫ، وﺔﻴﻟوﻷا... ،13 ،11 ،7 ،5 ،3 ،2... ،13 ،11 ،7 ،5 ،3 ،22ﺔﻈـــــﺣﻼﻣﺔﻈـــــﺣﻼﻣ د .ﺪﻌــــــــــــــــــــﻟا ﻞﻴـــــــــــــــــﻠﺤﺗ لﻼﺧ ﻦﻣ رﺬﺠﻟد اﺎـــــــــــــــــــــﺠﻳإ ﻦﻜﻤﻳﺔﻠـــــــــــــــــــﺜﻣأ64 = 8 1296 = 36 125 = 5 -8 = -2 343 = 723233

MATHSMATHS1296 = 361296 = 362 1296 2 648 2 324 2 162 3 81 3 27 3 9 3 3 17 343 7 49 7 7 1771296 = 361296 = 363125 25 5 15 5 5552 2 2-8 = -2-8 = -23( 36 - 64 ) + 13M ، M = 2 = (6 - 8) + 13 ( 2 ) = 2 + 26 = 24100 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim« ﻲﺒﻴﻌﻜﺘﻟر اﺬﺠﻟوا ﻲﻌﻴﺑﺮﺘﻟر اﺬﺠﻟا »« ﻲﺒﻴﻌﻜﺘﻟر اﺬﺠﻟوا ﻲﻌﻴﺑﺮﺘﻟر اﺬﺠﻟا » S q u a r e r o o t a n d c u b e r o o t22223333×××3343 = 7343 = 78 4 2 12266Amal AbdelkarimAmal Abdelkarimولﻻا ﻞﺼــــــﻔﻟا ﺔﻳﺎــــــــــــــــــــــــــــــﻬﻧولﻻا ﻞﺼــــــﻔﻟا ﺔﻳﺎــــــــــــــــــــــــــــــﻬﻧ E n d o f C h a p t e r O n e

04040101-: ً ﺎﻴﻨﻫذ ﺐﺴﺤﺘﻟ تﺎﻴﻠﻤﻌﻟا ﺺﺋﺎﺼﺧ ﻞﻤﻌﺘﺳا5 × 1 3 = 5 ( 1 0 + 3 ) = 5 × 1 0 + 5 × 3 = 5 0 + 1 5 = 6 50202( 1 7 + 8 ) + 2 = 1 7 + ( 8 + 2 ) = 1 7 + 1 0 = 2 70303( 1 3 × 1 1 ) × 5 = 1 3 × ( 1 1 × 5 ) = 1 3 × 5 5 = 5 5 × ( 1 0 + 3 ) = 5 5 0 + 1 6 5 = 7 1 5 6 × ( 3 0 + 3 ) = 6 × 3 0 + 6 × 3 = 1 8 0 + 1 8 = 1 9 80505 ( 1 3 × 1 1 ) × 5 = 1 3 × ( 1 1 × 5 ) = 1 3 × 5 5 = 5 5 × ( 1 0 + 3 ) = 5 5 0 + 1 6 5 = 7 1 50606-: ﺔــــــــــــــــــــــﻴﻤﻠﻌﻟرة اﻮﺼﻟﺎﺑ ﺔﻴﻟﺎﺘﻟاد اﺪـــــــــــــــــــــﻋﻻا ﺐﺘﻛا078² = 8×8 = 64087⁰ = 110⁴ = 10×10×10×10 = 1000021×10² = 21×100 = 21004×10⁷ = 4×10000000 = 4000000012 7 × ( 1 × 1 3 ) = 7 × 1 3 = 7 × ( 1 0 + 3 ) = 7 0 + 2 1 = 9 1110 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim1015¹ = 15110964 32 16 8 4 2 12 2 2 2 2 2ﻞﻴﻠــــــــــــــــﺤﺗ151000000 = 10⁶« ولﻻا ﻞﺼﻔﻟا ﺔﻠﺌﺳا ﻞﺣ »« ولﻻا ﻞﺼﻔﻟا ﺔﻠﺌﺳا ﻞﺣ »

7 × ( 1 × 1 3 ) = 7 × 1 3 = 7 × ( 1 0 + 3 ) = 7 0 + 2 1 = 9 117(5 × 22) − (6 × 15) + 1018= 110 − 90 + 10 = 20 + 10 = 30(72 ÷ 9) + (3 × (−7)) − (3 × 12)19= 8 + (−21) − 36 = −13 − 36 = −49|−36| ÷ |−6| + 13 × (−3)20= 36 ÷ 6 + (−39) = 6 + (−39) = −33|−45| − |−10| + ( 17 ÷ (−17) )21= 45 − 10 + (−1) = 35 + (−1) = 34x + 6³22237R − 502425(H − 45) ÷ (H + 4)8² × (y − 5)120 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim(32−9)×(14−8)² = 23×6² = 23×36 = 82888÷11 + 7×(-4) = 8 + (-28) = -20-: ﻲﻠﻳﺎﻣ ﻞﻛ ﺞﺗﺎــــــــــــــــــــــﻧ ﺪﺟت وﺎــــــــــــــــــــﻴﻠﻤﻌﻟا ﺐﻴﺗﺮﺗ ﻞﻤﻌﺘﺳا16الﺆﺳ-: ﻲﻠﻳﺎﻣ ﻞﻛ ﻞــــــﺜﻤــــــــــــﺗ ﺪﺟو ﺔــــــــــــــــــــﻳﺮﺒﺟ رةﺎﺒﻋ ﻞﻤﻌﺘﺳا

7 × ( 1 × 1 3 ) = 7 × 1 3 = 7 × ( 1 0 + 3 ) = 7 0 + 2 1 = 9 1130 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarimالﺆﺳة ؟ﺎﻄﻌﻤﻟة اﺮﻴﻐﺘﻤﻟا ﺔﻤﻴﻘﻟل اﺎﻤﻌﺘﺳﺎﺑ ﺔﻟﺎﺣ ﻞــــــــــــــﻛ ﻲﻓ ﺔﻳﺮﺒﺠﻟرة اﺎﺒﻌﻟا ﺔﻤﻴﻗ ﺪﺟ =12(6) + 7² + 5 = 12 × 36+49+5 =423 + 54 = 48612x² + 7² + 5 ، x = 6 = 3(-20 - 8) - 200 = 3(-28) - 200 = -84 - 200 = -284 3(y - 8) - 200 ، y = - 20 = (4 × 4 × 4)(-35 - 5) - 9 × 62 = 64(-40) - 558 = -2560 - 558 = -3118 4³(L - 5) - 9 × 62 ، L = - 35 = (72 ÷ 9) - (3×3)(1 - 9) = 8 - 9(-8) = 8 + 72 = 80 (72 ÷ M) - 3²(1 - M) ، M = 9 26 27 28 29

الﺆﺳح ؟ﺮﻄﻟوا ﻊﻤﺠﻟا ﻦﻴﺑ ﺔﻗﻼﻌﻟل اﺎﻤﻌﺘﺳﺎﺑ حﺮﻄﻟوا ﻊﻤﺠﻟت اﻻدﺎﻌﻣ ﻞﺣلﺎﻤﻌﺘﺳﺎﺑ ﺔﻤﺴﻘﻟب و اﺮﻀﻟت اﻻدﺎﻌﻣ ﻞﺣ ؟ ﺔﻤﺴﻘﻟب واﺮﻀﻟا ﻦﻴﺑ ﺔﻗﻼﻌﻟا لﺎﻤﻌﺘﺳﺎﺑ ﺔﻤﺴﻘﻟب و اﺮﻀﻟت اﻻدﺎﻌﻣ ﻞﺣ ؟ ﺔﻤﺴﻘﻟب واﺮﻀﻟا ﻦﻴﺑ ﺔﻗﻼﻌﻟاX³ - 36 ، X = 3 + | 14- | , x = 3 X³ - 36 ، X = 3 + | 14- | , x = 330 = 14 + (3×3×3) - 36 36 - 27 + 14 = 36 - 41 = 5 = ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا 7 × ( 1 × 1 3 ) = 7 × 1 3 = 7 × ( 1 0 + 3 ) = 7 0 + 2 1 = 9 1 32 33 M − 33 = −66 = M = −66 + 33 = M = −33 34 64 − Y = |−72| = 64 − Y = 72 = 64 = 72 + Y = Y = 64 − 72 = Y = −835 9 × L = 63 = L = 63 ÷ 9 = L = 7S ÷ 7 = -21 ⇒ S = -21 × 7 ⇒ S = -147 3637 13N = -52 ⇒ N = -52 ÷ 13 ⇒ N = -438 |+11| × M = 99 ⇒ M = 99 ÷ 11 ⇒ M = 940 X ÷ |-8| = 256 ⇒ X ÷ 8 = 256 ⇒ X = 256 × 8 ⇒ X = 204839 -125 ÷ y = |-25| ⇒ -125 ÷ y = 25 ⇒ y = -125 ÷ 25 ⇒ y = -5140 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim2V ÷ 4 − 48 ÷ (2V) ،V = 12- 2V ÷ 4 − 48 ÷ (2V) ،V = 12-= 2×(−12) ÷ 4 − 48 ÷ (2×(−12)) = (−24 ÷ 4) − (48 ÷ −24) = −6 − (−2) = −6 + 2 = −4 ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا 31 V + 125 = 35V + 125 = 35 = V = 35 − 125 = V = 35 + (−125) = V = −90 ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا

الﺆﺳ؟ ﺔﻴﺗﻵاد اﺪـــــــــــــﻋﻸﻟ ﻲﺒﻴﻌﻜﺘﻟوا ﻲﻌﻴﺑﺮﺘﻟر اﺬﺠﻟا ﺔﻤــــــــــــــــﻴﻗ ﺪــــــــﺟ7 × ( 1 × 1 3 ) = 7 × 1 3 = 7 × ( 1 0 + 3 ) = 7 0 + 2 1 = 9 1150 7 8 9 0 4 3 2 5 0 00 7 8 9 0 4 3 2 5 0 0Teacher Amal AbdelkarimTeacher Amal Abdelkarim41225 =ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا= 3 × 5 = 15225 75 25 5 13 3 5 53 54264 =ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا= 2 × 2 × 2 = 843100 =ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا= 2 × 5 = 100 = 10 44ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا= -23-8 =45729 =ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا= 3 × 3 = 9729 243 81 27 9 3 13 3 3 3 3 33 347ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا(AC)²=(6)²+(8)² (AC)²=(6)²+(8)² (AC)²=36+64 (AC)²=100 AC= 100 = AC 10cm46-1000 == 1000 = -101000 500 250 125 25 5 12 2 2 5 5 52 5ﻞـــــــــﺤﻟاﻞـــــــــﺤﻟا (AC)² = (AB)² + (BC)² =33ﺮﺗﻮﻟل اﻮﻃﺮﺗﻮﻟل اﻮﻃ