

Adolygu canrannau gwrthdro
Presentation
•
Mathematics
•
10th Grade
•
Medium
Mr Wood
Used 1+ times
FREE Resource
11 Slides • 8 Questions
1
Adolygu canrannau gwrthdro
by Mr Wood
2
Enghraifft 1
Gostyngiad
3
Multiple Choice
Mae cynnig arbennig 25% i ffwrdd ar esgidiau. Os 100% yw'r pris gwreiddiol, beth yw'r pris newydd?
75%
25%
125%
4
5
6
Multiple Choice
Os mae'r pris newydd (75%) yn £39, faint yw 25% ?
£14
£12
£19
£13
£17
7
8
Multiple Choice
O wybod bod 25% yn £13, sut allwn ni gael y pris gwreiddiol (100%)?
£13 x 5
£13 x 3
£13 x 4
£13 x 2
9
10
Enghraifft 2
Cynnydd
11
Multiple Choice
Mae treth 40% yn cael ei ychwanegu at bris tanc petrol. Os 100% oedd y pris cyn treth, faint yw pris tanc ar ôl treth?
60%
140%
40%
12
13
14
Multiple Choice
Os yda ni'n gwybod 20% allwn ni gael 100% (lluosi efo 5). Sut allwn ni gael 20% o wybod 140%?
÷7
÷6
÷5
÷8
15
Multiple Choice
Os mae'r pris newydd (140%) yn £63, faint yw 20% ?
£7
£12
£8
£13
£9
16
17
Multiple Choice
O wybod bod 20% yn £9, faint yw'r pris gwreiddiol (100%)?
£42
£36
£52
£45
£48
18
19
Poll
Hapus i gario ymlaen gwneud enghreifftiau eich hunain?
Hapus iawn
Hapus
Gweddol
Na!
Adolygu canrannau gwrthdro
by Mr Wood
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