rounding
round to the 10 place
324
320
10-9
=1
100+400
=500
5x5
=25
So if celie has 100 apples in one bag and Elin has 200 in her bag how meany do we have together.
300
round to The 10 place
484
480
20-20
=0
700+200
=900
5x9
=45
So if Elin has 100 in her bag and Celie has 200 in her bag and Gracie has 300 in her bag how meany do we have in all
600
round to the 10 place
592
590
100-50
=50
500+400
=900
10x4
=40
Elin has 100 apples in her bag and Celie has 100 apples in her bag Gracie has 200 in her bag and Eve has 300 in her bag how many do we have in all
700
round to the 10 place
987
990
300-200
=100
500+500
=1,000
9x3
=27
Elin has 100 apples Celie has 200 apples Eve has 300 apples Gracie has 300 apples how many do we have in all
900
round to the 10 place
989
990
900-700
=200
400+600
=1,000
8x8
=64
Elin has 100 apples Eve has 200 apples Celie has 300 apples Gracie has 500 apples how many do we have in all
11,000