This year in room seven we have been learning tidy numbers example : 12+18=30
12+4+8+6=30 this is one way you can solve them 6+4=10 12+8 =20 then you will do this 10+20=30
12+4+8+6=30 this is one way you can solve them 6+4=10 12+8 =20 then you will do this 10+20=30

