2n_ESO_ERE_Enters_operacions1
| __ | 1. | -(-2+3-(-9+7))+1= | | A. | +20 | | __ | 2. | -(-2+4-3)-(-2-4)+11= | | B. | 0 | | __ | 3. | -1 (-5)-5 (-2)+1= | | C. | +13 | | __ | 4. | -2-5-8-(-3+5)= | | D. | +16 | | __ | 5. | -2·(-5)+12-5-9-(-9)+7= | | E. | -17 | | __ | 6. | -4+6-12+5+8-3= | | F. | +24 | | __ | 7. | -4-5+4+8-3-(-12)+1= | | G. | -3 | | __ | 8. | -4-5+7+8-6+9-12= | | H. | -2 | | __ | 9. | -5+12-4·(-3)+1= | | I. | -30 | | __ | 10. | -5-9+8-6+3-2+9+7·(-4)= | | J. | +18 |
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