

Canrannau Gwrthdro
Presentation
•
Mathematics
•
10th Grade
•
Practice Problem
•
Medium
Ceri Thomas
Used 2+ times
FREE Resource
9 Slides • 11 Questions
1
Canrannau Gwrthdro

2
Multiple Choice
Er mwyn cynyddu gan 10% mewn un cam, beth ydw i'n lluosi gyda?
0.1
10%
1.01
1.1
3
Multiple Choice
Er mwyn gostwng gan 10% mewn un cam, beth ydw i'n lluosi gyda?
0.9
10%
0.09
1.1
4
Multiple Choice
Er mwyn cynyddu gan 25% mewn un cam, beth ydw i'n lluosi gyda?
0.25
25%
1.25
0.75
5
Fill in the Blanks
Er mwyn cynyddu gan 18% mewn un cam, beth ydw i'n lluosi gyda??
Type answer...
6
Cynyddu gan 18% = Lluosi gan 1.18
7
Fill in the Blanks
Er mwyn cynyddu gan 5% mewn un cam, beth ydw i'n lluosi gyda?
Type answer...
8
Fill in the Blanks
Er mwyn gostwng gan 56% mewn un cam beth ydyn ni'n lluosi gyda?
Type answer...
9
Gostwng gan 56% = Lluosi gan 0.44
(56+44 = 100)
10
Fill in the Blanks
Er mwyn gostwng gan 38% mewn un cam, beth ydw i'n lluosi gyda?
Type answer...
11
Dewch nôl i'r meet!
12
Fill in the Blanks
Cynyddodd bwysau ci gan 3%. Mae’r ci nawr yn pwyso 41.2kg. Beth oedd ei bwysau gwreiddiol?
Type answer...
13
Cynyddodd bwysau ci gan 3%. Mae’r ci nawr yn pwyso 41.2kg. Beth oedd ei bwysau gwreiddiol?
? x 1.03=41.2
41.2 ÷ 1.03 = 40kg
14
Fill in the Blanks
Cafodd got ei hysbysebu mewn sêl gyda phris o £80.75 ar ôl gostyngiad o 15%. Beth oedd pris gwreiddiol y cot?
Type answer...
15
Cafodd got ei hysbysebu mewn sêl gyda phris o £80.75 ar ôl gostyngiad o 15%. Beth oedd pris gwreiddiol y cot?
? x 0.85 = 80.75
80.75 ÷ 0.85 = £95
16
Fill in the Blanks
Mewn etholiad lleol derbynodd y Blaid Lafur 14280 pleidlais. Roedd hwn yn gynnydd o 12% o llynedd. sawl pleidlais derbynodd y Blaid Lafur llynedd?
Type answer...
17
Mewn etholiad lleol derbynodd y Blaid Lafur 14280 pleidlais. Roedd hwn yn gynnydd o 12% o llynedd. sawl pleidlais derbynodd y Blaid Lafur llynedd?
? x 1.12 = 14280
14280 ÷ 1.12 = 12750
18
Fill in the Blanks
Beth oedd cost gwreiddiol beic o wybod bod y pris wedi gostwng 26% ac y cost presennol yw £236.80?
Type answer...
19
Beth oedd cost gwreiddiol beic o wybod bod y pris wedi gostwng 26% ac y cost presennol yw £236.80?
? x 0.74 = 236.8
236.8 ÷ 0.74 = £320
20
Dewch nôl i'r meet!
Canrannau Gwrthdro

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