Week 1 - brent.kent.sch.uk · 1 Week 1. 2 2 minutes Rehearse your 3 times tables On your marks, get...
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1 Week 1
Transcript of Week 1 - brent.kent.sch.uk · 1 Week 1. 2 2 minutes Rehearse your 3 times tables On your marks, get...
1
Week 1
2
2 minutes
Rehearse your 3 times tables
On your marks, get
set....GO!
3
1.6.20To add 3digit numbers without bridging.
H T O
200 40 5 100 30 3
H T O
200 40 5 100 30 3 8
H T O 200 40 5 100 30 3
70 8
H T O 200 40 5 100 30 3
300 70 8
245 + 133 = Always add the ones first.
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1.6.20To add 3digit numbers without bridging.
128 + 231274 + 324 463 + 226642 + 237584 + 315455 + 434
Challenge:______ 25 = 410Can you use the inverse of subtraction (+) to solve this problem
11 + 18
25 + 12 23 + 2334 + 2535 + 3141 + 37
Challenge:
12 + 13 < 11 + 14True or false?Explain why.
646 + 232
Four hundred and fifty two add three hundred and thirty seven.
234 + 343 + 312
325 + 234 > 559True or false? Explain why.
423 + 225 + 131 = 769Is this correct? Justify your reasons.
______ - 321 = 524Can you use the inverse of subtraction (+) to solve this problem?
Challenge:Bridging the ones459 + 313
You can use dienes if you like.
5
2 minutes
Rehearse your 4 times tables
On your marks, get
set....GO!
6
2.6.20To add 3digit numbers bridging the ones.
H T O
400 50 7 200 10 4
H T O
1
H T O
70 1
H T O
600 70 1
457 + 214 =
400 50 7 200 10 4
400 50 7 200 10 4
400 50 7 200 10 4
10
10 10
7 + 4 = 11 but 11 has one ten therefore it cannot fit in the ones column so you must bridge the ten into the Tens column.
When you add your tens, you must also add the ten that you bridged over.
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117 + 143266 + 225 429 + 214671 + 219538 + 357755 + 135
Challenge:Choose a challenge from the 3 chilli box.
13 + 1718 + 14 24 + 1935 + 2529 + 3226 + 16
Challenge:
125 + 16
Challenge:Bridging the tens451 + 393
2.6.20To add 3digit numbers bridging the ones.
737 + 155 ____= 438 + 332
____ - 329 = 313Can you use the inverse of subtraction (+) to solve this problem. Show working out.
H T O400 70 7100 10 5 +300 60 2Tom says that 477 + 115 = 362. He is incorrect, where has he gone wrong? Work out the correct answer.
327 + 116 < 317 + 125Is this correct? Work out both answers then change the sign if needed.
Dienes or column method - maybe even both, it is your choice?
Expanded column methodExpanded column method
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Can your put these numbers into ascending order?
354 457 345 534 543 475
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3.6.20To add 3digit numbers bridging the tens.
H T O
200 60 2 200 60 3
H T O
5
H T O
20 5
H T O
500 20 5
262 + 263
200 60 2 200 60 3
200 60 2 200 60 3
200 60 2 200 60 3
100
100
Always add the Ones column first.
60 + 60 = 120 but 120 has one hundred therefore it cannot fit in the tens column so you must bridge the hundred into the Hundreds column.
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Challenge:356 + 144
____= 393 + 123
Billy has 252 apples, he wants to buy 100 more red apples but they are rotten so he buys 152 more green apples instead. How many apples did he buy? Show your working out.
454 + 371
Jill says that 364 + 161 = 425. She is incorrect, explain where she has gone wrong.
____ - 271 = 567Can you use the inverse of subtraction (+) to solve this problem. Show working out.
134 + 172295 + 134 481 + 256673 + 141555 + 252767 + 162
Challenge:Choose a challenge from the 3 chilli box.
125 + 15
114 + 15
124 + 17
121 + 25
138 + 33
117 + 12
Expanded column methodDienes or column method - maybe even both, it is your choice?
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04.06.20
To mentally add multiples of 100
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Look at the place value counters to complete the question...
163 + 52=To add by bridging Ten
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163 + 52=
200 10 5 215If there is more than 90 in the Tens column you swap ten counters for a Hundred counter
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484 + 243
4 84 3
00 000 0
42+
Remember to start with the lowest value column
4 84
00 000 02+
2 0
1 0 0
7 0 037
4
727
1. 2.
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628 + 3 Hundred, 5 Tens and 6 Ones
200 60 5+ 100 60 7
Use the column method to find the total:
Use the bar model to complete the statements:
136 +37=____ = 428 + 123=352 + 8 Tens and 6 Ones208 + 156 =
Jill says that 364 + 161 = 425. Is she correct? Show your working out. Challenge:Can you bridge the Ones and the Tens column?
265 + 167 =
Copy and complete by adding in columns:
200 20 5 + 10 7
100 20 6+300 50 8
100 50 7+ 70 1
200 80 5+200 40 2Challenge:What is the missing total?
4.6.20To add bridging the Ones or Tens.
349 274
Jack has _____. Eva has 193. They have _____ altogether.
258 193
?
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05.06.20Use the model to complete the statements.
Jack has _____. Eva has 200. They have _____ altogether.
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What if the Hundreds total more than 900?
642 + 537100 100 100
100 100
100
100
100
100100
100
1010
1010
1010
10
11
1111
111
100 100 100
100 100
100
100
100
100100
100
1010
1010
1010
10
11
1111
111
1000
Count the place value counters...
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60 4 25
0 000 0 3 7+
Start with the lowest value column!
642 + 537=1179
9701 0 01000
Th H T O
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700 30 6 + 500 30 2
808 + 156 =
452 + 635=
____ = 428 + 623=
Challenge:
555+555=
666+777=
999 + 888=
Can you solve this mix of questions?
200 20 5 + 400 10 3
700 20 6+500 50 3
100 50 7+100 20 6
600 40 5+800 40 2
5.6.20To add bridging the Tens and Hundreds
500 60 5+ 400 60 3
628 + 3 Hundred, 5 Tens and 6 Ones
700 30 6+ 700 10 2
Use the column method to find the total:
625 531
803 285
