Working with directed number and negative numbers RESEARCH

  • Slides: 2
Download presentation
Working with directed number and negative numbers RESEARCH Explain how you would help someone

Working with directed number and negative numbers RESEARCH Explain how you would help someone to understand what can be said to be different between a temperature of minus 3°C (-3°C) and the number negative 3 ( -3 ). Is zero a positive or a negative number? SKILL 1. Evaluate the following without using a calculator a) -6 + - 9 b) 2 + - 7 c) 5 - - 8 d) -5 × 12 e) -8 - - 4 f) -72 ÷ 9 g) 8 × -3. 5 h) -6 ÷ 8 i) -7 – +26 j) -7 × -3 k) (-4) 2 2. a) The temperature is 4˚C. It rises by 5˚C. What is the new temperature? b) The temperature is -2˚C. It rises by 6˚C. What is the new temperature? c) The temperature was 12˚C and is now -3˚C. What is difference between these two temperatures? 3. At 6 am, the temperature in Eastbourne was -2°C. By 2 pm it had risen by 19°C. What was the temperature in Eastbourne now? 4. If it is -26°C in Canada and 34°C in Australia, what is the difference in temperature? 5. How much debt would I be in if I spent £ 235 but only have £ 128 in the bank? MEMORY When you go down. When you go up. add a positive number, you go up. subtract a positive number, you add a negative number, you go subtract a negative number, you CHALLENGE Mrs Forster thinks of 2 numbers. The product of these two numbers is -28. What COULD the two numbers possibly be? List the possibilities. The same two numbers have a sum of 3. What MUST the two numbers be?

Title: - Set on RESEARCH SKILL Due on MEMORY CHALLENGE

Title: - Set on RESEARCH SKILL Due on MEMORY CHALLENGE