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Gwerth lle / Place value:
Beth yw gwerth y rhifau coch isod? / What is the value of the red numbers below?
Enghraifft / Example: 62 = 2
1. 97 2. 165 3 . 743 4. 1 632 5. 4 038 6. 8 743 7. 9 999 8. 12 065 9. 42 086
Cliciwch ar y linc er mwyn chwarae’r gêm gwerth lle. Medrwch ddewis eich lefel i’w wneud yn haws neu’n galetach. / Click on the link to play the place value game. You can choose your level to make it easier or harder.
Dosrannwch y rhifau isod. / Partition the numbers below.
Enghraifft / Example: 347= 300 +40+7 487 = 400+80+7
1. 154 2. 440 3. 1 733 4. 6 092 5. 9 944 6. 4 311 7. 10 773 8. 26 054 9. 125 700
Dilynwch y cyfarwyddiadau er mwyn darganfod yr atebion. Mae enghraifft isod. / Follow the instructions to discover the answers. Please see the example below.
Lluosi/Multiplication
Dewch i ymarfer eich sgiliau lluosi trwy gwblhau olwyn lluosi.
Beth am ymarfer tabl 2, 3, 4, 5, a 6?
How about practising your multiplication skills by completing a multiplication wheel?
Can you practise the 2, 3, 4, 5 and 6 times tables?
Cliciwch ar y wefan er mwyn chwarae gemau ar TTRockstars. / Click on the website to play some games on TTRockstars.
Cwblhewch y symiau rhannu. Dewiswch o’r opsiynau isod. / Complete the division sums. Choose from the options below.
Cliciwch ar y linc isod er mwyn chwarae ‘Hit the button’. Dewiswch yr opsiwn ‘times tables’, ac yna canolbwyntiwch ar y tablau 3,4, 6 ac 8. Fedrwch chi guro eich sgôr uchaf? / Click on the link to play 'Hit the button'. Choose the option 'times tables', and then concentrate on the 3, 4, 6 and 8 times tables. Can you beat your highest score?
Talgrynnu:
Talgrynnwch y rhifau isod i'r 10 agosaf. Dewiswch yr her sydd fwyaf addas i chi. / Round the numbers below to the nearest 10. Choose the most appropriate challenge for you.
Her 1 - Talgrynnwch i’r 10 agosaf / Round to the nearest 10:
1) 34
2) 23
3) 82
4) 52
5) 39
6) 87
Her 2 - Talgrynnwch i’r 10 ac i’r 100 / Round to the nearest 10 and 100:
1) 3256
2) 8159
3) 1345
4) 978
5) 455
6) 341
Cliciwch ar y linc isod er mwyn chwarae ‘rocket– rounding’. Gallwch ddewis eich lefel i’w wneud yn haws neu’n galetach. / Click on the link below to play ‘rocket-rounding.’ You can choose your level to make it easier or harder.
Bondiau rhif / Number bonds:
Fedrwch chi ateb y cwestiynau isod? Dewisiwch eich her. / Can you answer the questions below? Choose the most appropriate challenge.
Atebwch y cwestiynau adio isod gan ddefnyddio'r dull colofnau. Gweler y llun am enghraifft. / Answer the addition questions below using the column method. Please see and example in the picture.
39 + 39 =
47 + 37 =
88 + 56 =
178 + 123 =
487 + 287 =
503 + 298 =
Cliciwch ar y linc er mwyn chwarae’r gêm adio. / Click on the link to play the addition game.
Tynnu i ffwrdd/Subtraction:
Atebwch y cwestiynau tynnu isod gan ddefnyddio'r dull colofnau. Gweler y llun am enghraifft. / Answer the subtraction questions below using the column method. Please see the example in the picture.
Her 1/ Challenge 1:
46 -32 =
36 -16 =
57 - 13 =
88 - 36 =
125 - 112 =
Her 2/ Challenge 2:
243 - 123 =
423 - 257 =
848 - 559 =
424 - 66 =
381 - 927 =
Cliciwch ar y linc er mwyn ymarfer eich sgiliau tynnu. / Click on the link to practise your subtraction skills.
Arian/Money:
Ewch ati i greu'r cyfansymiau arian isod gan ddefnyddio amrywiaeth o geiniogau / papur e.e. 26c = 10c + 10c + 5c + 1c.
Create the amounts below using a variety of coins and notes e.g. 26c = 10c + 10c + 5c + 1c.
Cliciwch ar y linc er mwyn chwarae’r gêm arian. Medrwch ddewis eich lefel i’w wneud yn haws neu’n galetach. / Click on the link to play the money game. You can choose your level to make it easier or harder.
Trionglau lluosi / Multiplication triangles:
Trionglau lluosi / Multiplication triangles:
Cwblhewch y trionglau lluosi isod. Mae'r ateb i'r swm yn ymddangos yn goch ar ben y triongl ac mae angen i chi weithio allan pa rif sydd ar goll. / Complete the multiplication triangles below. The answer to the sum appears in red at the top of the triangle and you need to work out what number is missing.
Cliciwch ar y linc er mwyn chwarae’r gêm amser. Medrwch ddewis eich lefel i’w wneud yn haws neu’n galetach. / Click on the link to play the time game. You can choose your level to make it easier or harder.
Faint o'r gloch yw hi?
Darllenwch yr amser ar y clociau analog isod. A allwch chi ysgrifennu sut y byddai'r amseroedd hyn yn edrych ar gloc digidol?
Cofiwch: Ar glociau analog a digidol, yr awr sy'n dod gyntaf (bys bach) ac yna'r munudau (mawr=munudau).
What time is it?
Read the time on the analogue clocks below. Can you write how these times would look on a digital clock?
Remember: On both analogue and digital clocks, the hour comes first (small hand) and then the minutes (big hand).
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