1. Laske
a) 2 – 4 =
b) 20 – 30 =
c) – 4 +12 =
d) – 99 – 101 =
e) 60 – 30
f) – 1000 +1500 =

2. Laske
a) 0,8 – 0,5 =
b) – 0,8 – 0,5 =
c) 2,5 – 3,0 =
d) 13 – 23 =

3. Määritä puuttuva luku
a) 6 – = 3
b) 7 – = - 1
c) – 7 + = - 9

4. Laske
a) 8 – 11 + 3 =
b) – 4 + 2 – 5 +1 =
c) 6 + ( – 5) – ( –4) =