20 soal penjumlahan dan pengurangan

1. 37-10
2.29-18
3.89-17
4.16-7
5.8-1
6.280-28
7.3683-199
8.272-81
9.366-111
10.3730-31
11.7-10
12.5555-7890
13.666-999
14.2727-7272
15.1989-74
16.7891-768
17.8889-7
18.1626-77
19.7777-153
20.2869-269



1.2+39
2.2727+2772
3.272+828
4.2727+2828
5.2827+727
6.3728+288
7.1919+18
8.299+98
9.7282+88
10.6666+9999
11.17173+8181
12.1888+88
13.1818+88
14.28+80
15.827277+98
16.27+7
17.888+87
18.71+88
19.666+999
20.2869+269


:v