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St. Bartholomew’s C of E Primary School Parents Guide to maths

Select an operation to become a maths wizard!. St. Bartholomew’s C of E Primary School Parents Guide to maths. -. +. Addition. Subtraction. ÷. x. Multiplication. Division. Quit. *Only click when prompted to ensure all steps are seen. Zap a stage!. Select a stage!.

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St. Bartholomew’s C of E Primary School Parents Guide to maths

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  1. Select an operation to become a maths wizard! St. Bartholomew’s C of E Primary SchoolParents Guide to maths - + Addition Subtraction ÷ x Multiplication Division Quit *Only click when prompted to ensure all steps are seen.

  2. Zap a stage! Select a stage! • Addition - Stage 1 • Addition - Stage 2 • Addition - Stage 3 • Addition - Stage 4

  3. Zap a stage! Select a stage! • Subtraction - Stage 1 • Subtraction - Stage 2 • Subtraction - Stage 3 • Subtraction - Stage 4

  4. Zap a stage! Select a stage! • Multiplication - Stage 1 • Multiplication - Stage 2 • Multiplication - Stage 3 • Multiplication - Stage 4

  5. Zap a stage! Select a stage! • Division - Stage 1 • Division - Stage 2 • Division - Stage 3 • Division - Stage 4

  6. +Addition ~Watch and Learn!+ Put the largest number first Then count on in units Stage 1: slide 1 TU + U 24 + 3 = +1 +1 +1 ______________________________ 24 25 26 27 So 24 + 3 = 27 Select a stage. See TU+ TU

  7. Begin by drawing a number line starting with the biggest number +Addition~Watch and Learn!+ Stage 1: slide 1 TU + TU 22 + 33 = ______________________________ 33 Next

  8. T Add 2 tens first +Addition~Watch and Learn!+ Stage 1: slide 2 TU + TU 22 + 33 = +10 +10 ______________________________ 33 43 53 Next

  9. Then add 2 units U 55 So 22 + 33 is 55 +Addition~Watch and Learn!+ Stage 1- slide 3 22 + 33 = +10 +10 +1 +1 ______________________________ 33 43 53 54 55 Select a stage. See HTU+ HTU

  10. +Addition ~Watch and Learn!+ Add in steps of 100 first then the tens. Then add away the tens. Then the units. Stage 1: Slide 1 HTU+ HTU 347 + 123 = +20 347 +100 +3 ______________________________ 447 467 470 Place the largest number at the beginning of the line. Select a stage. So 347 + 123 = 470

  11. TU TU Start by partitioning the tens and the units. +Addition~Watch and Learn!+ Stage 2: slide 1 TU + TU 36 + 43 = (30+6) +(40+ 3) 30 + 40 6 + 3 Next

  12. +Addition~Watch and Learn!+ Add the tens together and then the units. Stage 2: slide 2 TU + TU 36 + 43 = (30+6) + (40+ 3) 30 + 40 = 70 6 + 3 = 9 Select a stage. 70 + 9 = 79 So 36 + 43 is 79 See HTU+ HTU

  13. +Addition~Watch and Learn!+ Add the hundreds together and then the tens and units. Stage 2: Slide 1 HTU + HTU 236 + 343 = (200+ 30+6) + (300 + 40+ 3) 200 + 300 = 500 30 + 40 = 70 6 + 3 = 9 Select a stage. 500 + 70 + 9 = 579 So 236 + 343 is 579

  14. TU Write the numbers so that the Tens and the Units are in line. +Addition~Watch and Learn!+ Stage 3: slide 1 TU+ TU 47 + 76 = 47 +76 Next

  15. Start by adding the the units. 7 + 6 = U +Addition~Watch and Learn!+ Stage 3:slide 2 TU + TU 47 + 76 = 47 +76 13 Next

  16. Then add the tens. 40 + 70 = T +Addition~Watch and Learn!+ Stage 3:slide 3 TU + TU 47 + 76 = 47 +76 13 110 Next

  17. +Addition~Watch and Learn!+ Stage 3: slide 4 TU + TU 47 + 76 = 47 +76 Now add these together 110 + 13 = 13 + 110 123 Select a stage. So 47 + 76 is 123 HTU + HTU

  18. +Addition~Watch and Learn!+ Stage 3: slide 1 HTU + HTU 247 + 176 = Set out as before. Add the units and tens as before and record. The extra step, add the hundreds together 200 + 100 = 300 Then add the numbers. 247 +176 13 + 110 300 Select a stage. 423 So 247 + 176 is 423

  19. TU 47 + 76 Write the numbers so that the Tens and the Units are in line. +Addition~Watch and Learn!+ Stage 4: slide 1 TU + TU 47 + 76 = Next

  20. Now add the units 7 + 6 = 13 U 47 + 36 3 units go in the units column 3 units go in the units column 3 +Addition~Watch and Learn!+ Stage 4: slide 2 TU + TU 47 + 36 = Exchange 10 units for 1 ten. This goes onto the door step. 1 Next

  21. Now add the tens 40 + 30 = 70 Remember there is one ten here to add too. 7 tens + 1 ten = 8 tens T 47 + 36 You need to put the ten digit in the tens column +Addition~Watch and Learn!+ Stage 4: slide 3 TU + TU 47 + 36 = 1 8 3 Select a stage. So 47 + 36 is 83 See HTU + HTU

  22. +Addition~Watch and Learn!+ Stage 4: Slide 1 HTU + HTU Carry any units over 9, any tens over 90. Remember to add the carry! 7 + 6 = 13 carry the ten 40 + 80 + 10 = 130 carry the hundred 100 + 100 + 100 = 300 147 + 186 = 147 + 186 1 1 3 3 3 Select a stage. So 147 + 186 is 333

  23. -Subtraction~Watch and Learn!- Count back the correct amount of units e.g. 3 units = 3 jumps of 1 . Remember to count back in 1’s Stage 1: slide 1 TU-U 32 - 3 = 32 -1 -1 -1 ______________________________ 29 30 31 Place the largest number at the end of the line. Select a stage. So 32-3 = 29 See TU-TU

  24. Take away in steps of 10 first as this is easier. 23 = 2 tens. Then take away in jumps of 1. 3 units equal 3 jumps. -Subtraction~Watch and Learn!- Stage 1:slide 1 TU - TU 47 - 23 = 24 24 -1 -1 -1 -10 -10 47 ______________________________ 25 26 27 37 Place the largest number at the end of the line. Select a stage. So 47 – 23 = 24 See HTU-HTU

  25. -Subtraction~Watch and Learn!- Take away in steps of 100 first as this is easier. 123 = 1 jump of 100. Then take away the tens. Then the units. Stage 1: slide 1 HTU-HTU 347 - 123 = 347 -100 -3 -20 ______________________________ 224 227 247 Place the largest number at the end of the line. Select a stage. So 347 – 123 = 224

  26. TU TU Start by partitioning the tens and the units. - Subtraction ~ Watch and Learn!- Stage 2: slide 1 TU -TU 89 - 43 = 89 – 40 - 3 Next

  27. Subtract the tens first. Then subtract the units from your first answer. - Subtraction ~ Watch and Learn!- Stage 2: slide 2 TU -TU 89 – 43 = 89 – 40 - 3 89 - 40 = 49 49 – 3 = 46 Select a stage. So 89 - 43 is 46 See HTU-HTU

  28. Subtract the hundreds first. Then subtract the then tens from your first answer. Then the units - Subtraction ~ Watch and Learn!- Stage 2: slide 1 HTU - HTU 489 – 243 = 489 – 200 -40 - 3 489 - 200 = 289 289 – 40 = 249 249 – 3 = 246 Select a stage. So 289 - 243 is 246

  29. Partition 563 into hundreds, tens and units. Repeat with 241 -Subtraction~Watch and Learn!- Stage 3 :slide 1 563 - 241 = 500 + 60 + 3 -200 + 40 + 1 Next

  30. Start with the units 3 – 1 = 2 Next, subtract the hundreds 500 – 200 = 300 300 + 20 + Next, subtract the tens 60 – 40 = 20 -Subtraction~Watch and Learn!- Stage 3: slide 2 563 - 241 = H T U 500 + 60 + 3 -200 + 40 + 1 2 Next

  31. Add the answers together 300 + 20 + 2 = 322 -200 + 20 + 2 300 -Subtraction~Watch and Learn!- Stage 3: slide 3 563 - 241 = 500 + 60 + 3 -200 + 40 + 1 2 = 322 20 Select a stage. So 563 - 241 = 322

  32. H TU 137 - 85 Write the numbers so that they are in place value position. -Subtraction~Watch and Learn!- Stage 4: slide 1 Decomposition 137 - 85 = Next

  33. -Subtraction~Watch and Learn!- Subtract the units first. 7 – 5 = And write under the units. Stage 4: slide 2 0 1 137 - 85 = 1 3 7 - 8 5 The tens can’t be subtracted as 30 – 80 = - 50 Borrow 1 hundred from the hundred column. The tens column now has 130 in it and the hundred has 0. 2 Next Cross out the hundred and leave a 0 above. The 100 is put in the tens as a 1.

  34. -Subtraction~Watch and Learn!- Stage 4: slide 3 0 1 137 - 85 = 1 3 7 - 8 5 There are 0 hundreds to subtract. 5 2 Now solve 130 – 80 and write the answer. Select a stage. So 137 - 85 = 52

  35. xMultiplication~Watch and Learn!x Partition the 14 into 2 parts, tens and units. Stage1:slide 1 14 x 5 = = 10 x 5 = 4 x 5 Next

  36. xMultiplication~Watch and Learn!x Stage 1: slide 2 14 x 5 = Now add 50 + 20 and write the answer. 10 x 5 = 50 4 x 5 = 20 So 14 x 5 = 70 Select a stage.

  37. Partition 16 into 1 ten and 6 units xMultiplication~Watch and Learn!x 10 6 Stage 2: slide 1 Grid Method 16x4 = 4 Draw a box two across and one down because you are multiplying a 2 digit number by a 1 digit number. Next

  38. The answer to 4 x 6 goes here. The answer to 10 x 4 goes here. Now add these answers together. 40 + 24 = xMultiplication~Watch and Learn!x Stage 2: slide 2 16x4 = x 10 6 4 40 24 Select a stage. So 16 x 4 = 64 See HTU x U See TU x TU

  39. Partition 27 into 2 tens and 7 units Partition 56 into 5 tens and 6 units xMultiplication~Watch and Learn!x TU x TU slide 1 56x27 = 20 7 50 6 Next

  40. The answer to 50 x 7 goes here. The answer to 6 x 20 goes here. The answer to 50 x 20 goes here. The answer to 6 x 7 goes here xMultiplication~Watch and Learn!x TU x TU slide 2 56x27 = x 20 7 1000 50 350 120 42 6 Next

  41. x 1000 350 120 42 xMultiplication~Watch and Learn!x TU x TU slide 3 56x27 = 20 7 50 Add these four numbers together. 1000 + 350 + 120 + 42 = Children can use the addition methods to help them add. 6 Select a stage. So 56 x 27 = 1512 See HTU x U

  42. Partition 126 into 1 hundred, 2 tens and 6 units xMultiplication~Watch and Learn!x 126x 4 = HTU x U slide 1 6 100 20 4 Next

  43. Partition 126 into 100, 20 and 6 The answer to 6 x 4 goes here. The answer to 4 x 100 goes here. The answer to 20 x 4 goes here xMultiplication~Watch and Learn!x 126x 4 = HTU x U slide 2 6 100 20 400 80 24 4 Next

  44. Add 400 + 80 + 24 xMultiplication~Watch and Learn!x 126x 4 = HTU x U slide 3 6 100 20 400 80 24 4 Select a stage. So 126 x 4 = 504 See TU x TU

  45. TU 38 x 7 Set the sum out like this so that the numbers are in the correct columns. xMultiplication~Watch and Learn!x Stage 3: slide 1 38 x 7 = Next

  46. 38 x 7 xMultiplication~Watch and Learn!x Stage 3: slide 2 38 x 7 = Multiply the units by 7 7 x 8 = 56 56 Multiply the tens by 7 7 x 30 = 210 210 Next

  47. Now add these two answers together. 56 + 210. xMultiplication~Watch and Learn!x Stage 3:slide 3 38 x 7 = 38 x 7 56 210 266 Select a stage. So 38 x 7 = 266 See TU x TU

  48. TU 15 x 24 Set the sum out like this so that the numbers are in the correct columns. xMultiplication~Watch and Learn!x TU x TU slide 1 15 x 24 = Next

  49. xMultiplication~Watch and Learn!x TU x TU slide 2 15 x 24 = Multiply by the units 4 x 5 = 20 and 4 x 10 = 40 15 X 24 20 Next 40

  50. xMultiplication~Watch and Learn!x TU x TU slide 3 15 x 24 = 15 X 24 20 40 Next Multiply by tens 20 x 5 = 100 and 20 x 10 = 200 100 200

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