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Algebra

Algebra. Defnyddio llythrennau i gynrychioli rhifau. Algebra. =. +. 3 afal + 3 afal =. 6 afal. 3a + 3a =. 6a. Algebra. =. +. 2 afal + 5 afal =. 7 afal. 2a + 5a =. 7a. Algebra. =. -.

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Algebra

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  1. Algebra Defnyddio llythrennau i gynrychioli rhifau

  2. Algebra = + 3 afal + 3 afal = 6 afal 3a + 3a = 6a

  3. Algebra = + 2 afal + 5 afal = 7 afal 2a + 5a = 7a

  4. Algebra = - 6a - 1a = 5a 6a - a = 5a

  5. = e Algebra = + 3e + 5e = 8e

  6. Algebra 3b + 2b = 5b 6c + 6c = 12c 7g – 2g = 5g 16b - 12b = 4b 100t + 35t = 135t 3x - 2x = x

  7. Algebra 5b + 7b = 12b 2c + 5c = 7c 8g – 5g = 3g 16b - 11b = 5b 57t 100t - 43t = 3x - 2x = x 5y + 3y + y = 9y

  8. Algebra 3b + 2b + 2a = 5b + 2a

  9. Algebra 3a + 4b - 2a – 2b = a + 2b

  10. ALGEBRA 12c +4d - 6c +2d - 3c = 3c + 6c a -4b – 2a +2b +3a = 2a - 2b 5x +3y -10x +17y -3y = -5x +17y = 17y - 5x

  11. Algebra 3b + 2b + 5a = 5b + 5a 12c - 6c + 2c = 8c 3g – 5g + 4g = 2g 3x + 4y - 2x – 2y = x + 2y

  12. TASG: Algebra 3x + 5x = 8x 6n + n = 7n 4y + 2y + y = 7y 3p + 2t + p = 4p + 2t 3m – n + 2m = 5m - n 34x - 33x = x

  13. ALGEBRA 12f +4g - 6f +2g - 3h + f +7h = 7f + 6g + 4h

  14. TASG: Algebra 3x + 5x -7y -7x = x -7y 6n -3m + 21m -9n = 18m -3n 4u + v + 6w -2v + 3u = 7u -v +6w 3p + 2t + p -7q + 99p = 103p + 2t -7q 3m + n + 2m -5m = n 4y - 33x +30x - 6y = -2y -3x

  15. Lluosi 4a 2 x 2a = 6b 2b x 3 =

  16. Rhannu 2a 4a ÷ 2 = 2b 6b ÷ 3 =

  17. Lluoswch y canlynol: 5a x 7 3b x 3 4c x 9 d x 8 2e x 10 8f x 5 6g x 6 Rhennwch y canlynol: 35a ÷ 5 24b ÷ 3 16c ÷ 4 21d ÷ 7 28e ÷ 4 6f ÷ 6 8g ÷ 1 TASG

  18. Lluosi • Lluoswch y canlynol: • 5a x b • 3b x 4c • 2c x 9d • 3d x 8f • 2e x f • 4f x 5g • 6h x 6i • a x b = ab • ab x dc = abdc • 3a x b = 3ab • 2f x 3g = 6fg

  19. Problemau bob dydd • Mae Siôn yn prynu 3 can o Pepsi ond nid yw’r prisiau arnynt. Mae’n talu â £2 ac mae’n cael 20c o newid. Defnyddiwch algebra i gynrychioli’r sefyllfa, a chanfod pris 1 can. • Rwy’n gwybod stêc a sglodion yn costio £a+b. Mae selsig a sglodion yn costio £c+b, a stêc yn unig yn costio £a. Os ydw i’n talu £3.60 am stêc a sglodion, £1.10 am sglodion a £2.80 am selsig a sglodion. Faint yw’r stêc a’r selsig ar eu pennau eu hunain? • Mae a disgybl mewn dosbarth. Pan fo dau ddisgybl arall yn ymuno â’r dosbarth, faint o ddisgyblion fydd yn y dosbarth (yn algebraidd)? Os yw a=27, beth yw cyfanswm y disgyblion yn y dosbarth? • Mae Harri yn prynu 3 potel o ddŵr am a ceiniog, 5 paced o greision am b ceiniog ac un bar o siocled am c ceiniog. Beth yw cyfanswm nwyddau Harri? Mae Henri yn prynu 3 potel o ddŵr ac un bar o siocled am £2.10, ac mae’n gwybod bod y siocled yn costio 30c. Os yw paced o greision yn costio 30c hefyd, faint o arian ydy Harri yn gwario?

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