Printable worksheet ยท 3 of 4
One example can disprove an always claim - Paper 3
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
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Reasoning card. Claim to test: 'If a product is zero, both factors must be zero.' Separately consider the sum of an even and an odd integer being odd. A single valid counterexample disproves an 'always' claim, while several confirming examples do not establish a universal result. State the number domain used in a general argument.
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