This student was playing in reception last week. In 5 days she made 80 sandcastles. Each day she made 4 fewer castles than the day before.
How many castles did she make each day?
She went on making 4 fewer castles each day.
How many castles did she make altogether?
Sh must have made 5 castle each day because if she made 4 it will last up to 60 and she needs more
ReplyDeleteShe made 4 fewer sand castles each day
ReplyDeleteShe made 80 sand castles in the last week.
M T W T F
ReplyDelete24 20 16 12 8
In total is 80 I worked this out by colom method
Is Emily right Year 3? Can anyone answer the challenge?
DeleteI agree with Emily because 24+16=40+20=60+12=72+8=80
DeleteChallenge
ReplyDeleteShe made 160 sand castles.Yes she is right.
M t w t f
ReplyDelete2 2 2 2 0
From my answer befor this makes 88 going a nether week makes 93
I used the Colom method once again
'M t w t f
ReplyDelete20 10 20 5 5
M T W T F
ReplyDelete20 20 10 20 10
In total this is 80
M T W TH F
ReplyDelete24 20 16 12 8
24+20+16+12+8=80
24+20=44
44+16=60
60+12=72
72+8=80 In total is 80 I worked this out in my head
M T W TH F
20 16 12 8 4
20+16=36
36+12=48
48+8=56
56+4=60