Year 3 Block A: - Suffolk Learning

13 of 20 The National Strategies ⏐ PrimaryYear 3 Block A: Counting, partitioning and calculating• Derive and recall all addition and subtractionfacts for each number to 20, sums anddifferences of multiples of 10 and number pairsthat total 100I know the sum and difference of any pair ofnumbers to 20I can add and subtract multiples of 10 or 100 inmy headI know number pairs that sum to 100• Add or subtract mentally combinations of onedigitand two-digit numbersI can add or subtract one-digit and two-digitnumbers in my head(e.g. 62 + 7, 7 + 45, 48 – 6, 60 – 8)• Multiply one-digit and two-digit numbers by 10or 100, and describe the effectI can multiply by 10 or 100 and say whathappens to the number I multiply• Derive and recall multiplication facts for the2, 3, 4, 5, 6 and 10 times-tables and thecorresponding division facts; recognisemultiples of 2, 5 or 10 up to 1000I know my tables for 2, 3, 4, 5, 6 and 10• Follow up others’ points and show whether theyagree or disagree in a whole-class discussionIn a discussion I can share my views withothers in the class and follow up their pointsWhat is 3 + 4, 30 + 40 and 300 + 400?What is 8 – 5, 80 – 50 and 800 – 500? How do youknow?Two numbers add up to 20. They have a differenceof 2. What are the numbers?What must you add to 62p to make £1?I cut 53cm off 1 metre of string. How long is thepiece that is left?What is 46 + 8? Explain how you did it.How would you add 18 to 46?What is 73 – 7? Explain how you did it.How would you subtract 17 from 73?Think of two numbers that have a difference of 9.Write a number sentence to show this. Now findand record some more pairs of numbers with adifference of 9.What is 58 + 30? What is 58 + 29? How do youknow? What is 58 – 30? What is 58 – 29? How didyou work these out? Show me on an emptynumber line.Multiply 4 by 10. Multiply the answer by 10. Whathas happened to the value of the digit 4? Can youexplain what happens to the 4 when we multiply 4by 100?What number is 10 times more than 70 tens? Whatis 10 times bigger than 23?Count on in fours from zero. Now count back tozero. This time, count on seven fours from zero.Show me seven hops of four from zero on thenumber line. How can you work out the 4 timestablefrom the 2 times-table? The 6 times-tablefrom the 3 times-table?What is the relationship between 4 × 7 = 28,6 × 7 = 42 and 10 × 7 = 70?Is this calculation correct? John thinks that it iswrong. Do you agree or disagree? Why do youthink so?Mary has just told us how she subtracted 39 from76. Use Mary's method to subtract 59 from 92.What diagram did you draw to help you to solvethe problem? Did anyone use a different diagram?00543-2008DOM-EN-11 © Crown copyright 2009