adding
308+21=
329
6798-38=
6760
220/10=
22
220X10=
2200
is 100/1=1/100
yes
439+36=
475
899-650=
249
7300/10=
73
7300X10=
73000
is 40/4=4/10
no
56743+29=
56772
5789-356=
5433
16000/4=
4000
16000X4=
64000
how many holes is 48/4
12
49+347+99=
496
98763-5789=
92974
183/3=
61
61X3=
183
how many holes is 132/11
12
3468+8643=
12111
3659761-67895=
3651866
1833/3=
611
611X3=
1833
what is 420/10
42