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Datrys problemau

Datrys problemau. G E S A U 1 Haf 2010 Cwestiwn 1. G Beth ydw i ’n gwybod ?. 1 sgwâr mawr + 1 sgwâr bach = 19cm. 2 sgwâr mawr + 1 sgwâr bach = 30cm. E Beth ydw i eisiau ?. Mae angen cyfrifo : Hyd ochr un sgwâr mawr Hyd ochr un sgwâr bach. S Sut ydw i’n gwneud hyn ?.

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Datrys problemau

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  1. Datrysproblemau GESA U1 Haf 2010 Cwestiwn1

  2. GBeth ydwi’ngwybod ? 1 sgwârmawr + 1 sgwârbach = 19cm 2 sgwârmawr + 1 sgwârbach = 30cm

  3. EBeth ydwieisiau ? • Mae angencyfrifo: • Hydochr un sgwârmawr • Hydochr un sgwârbach

  4. SSutydwi’ngwneudhyn ? Darganfod y gwahaniaethyn y ddauateb: (2 sgwârmawr ac 1 sgwârbach) – (1 sgwârmawr ac 1 sgwârbach) = 1 sgwârmawr Osydwi’ngwybodmaint 1 sgwârmawr, gallafddarganfodmaint 1 sgwârbach.

  5. ABeth yw’rateb ? (2 sgwârmawr ac 1 sgwârbach) – (1 sgwârmawr ac 1 sgwârbach) = 30 – 19 = 11cm felly hyd 1 sgwârmawryw 11cm Os1 sgwârmawr ac 1 sgwârbach = 19cm, rhaid bod 1 sgwârbach = 8cm Rwy’ngwiriofyateb: 2 sgwârmawr + 1 sgwârbach = (2 x 11) + 8 = 30cm felsyddangen.

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