Hi boys and girls

I have 2 colums i need to sort, first on postal number and second weight
between 0 and 3 kg

Col. A Col.B
0141 3
0145 7
0189 2
0176 1
0188 3
2100 6
2100 2
3350 2
6893 2
0149 12

The colums can be with 10000 rows
What i want is :
If col.A are between postalnumber 0 and 0999 AND col.B are between 0 and 3
kg i need the sum of all weights between 0 and 3 kg
The same function for postalnumber between 1000 and 1999, and between 0 and 3
kg
The same function for postalnumber between 2000 and 2999, and between 0 and 3
kg

If col.A are between postalnumber 0 and 0999 AND col.B are between 4 and 5
kg i need the sum of all weights between 4 and 5 kg
The same function for postalnumber between 1000 and 1999, and between 4 and 5
kg

Also need a count of the same, how many 0 to 3 kg there are if postalnumbers
are between 0 and 0999
Also need a count of the same, how many 0 to 3 kg there are if postalnumbers
are between 1000 and 1999

Hope I explaned it right

I basicly need to know how I can set 2 conditions to the SUMIF AND COUNTIF
FUNCTIONS
The first condition is that the value i col A is between 0 and 0999 (1000
and 1999 and so on)
The second is that the value in col B is between 0 and 3 kg (4 and 5 kg,
6and 8 and so on)

Hopefull user
Rock

Just a regular user