Mental maths homework

Date: 12th Jan 2018 @ 8:48am

How quickly can you answer these calculations using mental strategies?

Write down your answers on the blog by next Friday!

1. 67,456 + 2,232 = 

2. 89,567 - 34,134 = 

3. 78,567 + 10,504 = 

4. 100,789 - 50,623 = 

5. 90,789 - 40,557 = 

6. 12,673 + 6,420 = 

7. 56,803 - 25,100 = 

8.456,789 + 400,123 = 

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Isla McDonough wrote:

1. 69,688
2.55,433
3.89,071
4.50,166
5.50,232
6.19,093
7.31,703
8.856,912- I did these questions in 5 minutes 43 seconds

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kismet wrote:

i loved it i think i got them all right.

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Felix Parks :) wrote:

1)69,688
2)55,433
3)89,011
4)50,126
5)50,232
6)19,016
7)31,703
8)856,912

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Anabelle wrote:

1. 69,688
2. 55,433
3. 89,071
4. 50,166
5. 50,232
6. 19,093
7. 31,703
8. 856,912

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leah wrote:

1. 69,688
2. 55,433
3. 89,071
4. 50,166
5. 50,232
6. 19,093
7. 31,703
8. 856,912
time:7min35sec

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Mathilde wrote:

1.69,688 2.55,433 3.89,071 4.50,166 5.50,232 6.19,093 7.31,703 8.856,912

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Tara Hulme wrote:

1. 69,688 2. 55,433 3. 89,071 4. 50,163 5. 50,232 6. 19,093
7. 31,703 8. 456,912

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Oliver Southern wrote:

1. 69688
2. 55433
3. 89071
4. 50166
5. 50232
6. 19093
7. 31703
8. 856912

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Ella Brodie wrote:

1. 69,688
2. 55,433
3. 89,071
4. 50,166
5. 50,232
6. 19,093
7. 31,703
8. 856,912

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Charlotte wrote:

1. 69,688 2. 55,433 3. 89,070 4. 50,166 5. 50,232 6. 19,093 7. 31,703 8. 857,012 Time: 7 minutes and 11 seconds

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Eva Karagiannis wrote:

1.69,688
2.55,433
3.89,071
4.50,166
5.50,23
6.19,093
731,703
8.856,912.

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grace louise voyce wrote:

1. 69,688
2.58,433
3.88,128
4.50,166
5.50,232
6.18,114
7.31,703
8.856,822

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Nikolas Stachura wrote:

1.67,456+2,232=69,688 2.89,567-34,134=55,433 3.78,567+10,504=89,071 4.100,789-50,623=50,166. 5.90,789-40,557=50,232. 6.12,673+6420=19,093. 7.56,803-25,100=31,703. 8.456,789+400,123=856,912

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Amy Judge wrote:

1. 69,688
2. 55,433
3. 89,,071
4. 50,166
5. 50,232
6. 19,093
7. 31,703
8 856,912

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