Maths Decimals

A) 2.5+3.9=6.4   -0.1 +0.1 2.4+4=6.4	F)13.7+4.5=14.2   +0.3 -0.3 14+4.2=18.2	K)7.3+7.5=14.2  -0.3  +0.3 7+7.8=14.8
B) 4.6+1.8=6.4    -0.2 +0.2 4.4+2=6.4	G)5.8+4.6=10.4   +0.2 -0.2 6+4.4=10.4	L)11.1+6.8=17.9   -0.1  +0.1 11+6.9=17.9
C)3.1+6.3=9.4   -0.1 +0.1 3+6.4=9.4	H)9.9+4.6=14.5   +0.1 -0.1 10+4.5=14.5	M)5.8+9.3=15.1   +0.2 -0.2 6+9.1=15.1
D)2.8+2.5=5.3   +0.2 -0.2 3+3.3=5.3	I)6.6+8.8=15.4  -0.2 +0.2 6.4+9=15.4	N)7.2+8.4=15.6   -0.2 +0.2 7+8.6=15.6
E)4.8+6.7=11.5   +0.2 -0.2 5+6.5=11.5	J)4.2+5.8=10  -0.2 +0.2 4+6=10	O)13.5+8.9=22.9    -0.1  +0.1 13.4+9=22.9
A)6.5+8.1=14.6	D)4.8+12.3=17.1	G)9.8+8.8=18.6
B)9.3+7.4=16.7	E)7.7+2.6=10.3	H)7.3+12.4=19.7
C)6.7+8.3=15	F)12.4+12.9=25.3	I)15.3+3.7=19
3.7+7.8=11.9 -0.2 +0.2 3.9+8=11.9	45.6+4.8=50.4 -0.2  +0.2 45.4+5=50.4	1.3+0.3=1.6 -0.3 +0.3 1+0.6=1.6
14.4+13.6=28 -0.4  +0.4 14+14=28	4.6+12.3=16.9 +0.3 -0.3 4.9+12=16.9	14.5+12.2=16.7 +0.2   -0.2 14.7+12=16.7
33.4+7.5=40.9 -0.4 +0.4 33+7.9=40.9	1.6+1.3=2.9 +0.3 -0.3 1.9+1=2.9	37.3+19.8=57.1 -0.2   +0.2 37.1+20=57.1