1. ( - 521 ) x 11 = 1980
2. - 213 + 118 = 427
3. ( 438 x 13 ) ÷ = 26
4. ( 4242 ÷ 7 ) - 606 =
5. 114 x 125 =
6. 89 x 299 =
7. 1386 ÷ 125 =
8. ( 136 x 44 ) ÷ ( 88 x 68 ) =
9. ( 85 x 14 ) + ( 55 x 14 ) =
10. ( 65 + 35 ) x ( 65 - 35 ) =