Adunări
500 + 500
X = 1000
1000 - 325 = X
X = 675
9 x 7 = X
X = 63
36 : 4 = X
X = 9
6 + 6 : 6 = x
X = 7
275 + 725
X = 1000
5500 - 3280 = X
X = 2220
10 x 14 = X
X = 140
64 : 8 = x
X = 8
10 - 10 : 2 = x
X = 5
4268 + 5732 = X
X = 10000
10000-6310 = x
X = 3690
2 x 36 = x
X = 72
42 : 6 + 93 = X
X = 100
72 : 8 + 6 x 3 =
27
3194 +6906 = X
10100
6.450 - 1.769 = X
X = 4.681
(2 x 4) + (3 x 9) = X
X = 35
1000 - 48 : 8 =
X = 994
81- 81 : 9 + 3459 =
X = 3531
1284 +3275 + 999 = X
X = 5558
10.000 - 800 - 650 = X
X = 8550
(100 - 96) X (1000 - 992) = x
X = 32
(1251 - 1215) : (10.000 - 9996) = x
X = 9
(10.000 - 9993) x 8 + 6 x 6 = X
X = 92