change addition Exercise 2.1.7 A Which operation should you perform first? 1. 20-16+5 8 5. 81+2x5 2. 36+4 x 5, 6. 5-3(6+4) 3. 160 x 4+2 7. 7+8{3(5-6)} 4. 54-9+3. 8. 160+2[8{5(4-6)}] BMENTAL MATH. Perform the indicated operations in A. C Perform the indicated operations: Set a 1. 8+5-3. 2. 16-5+9 3. -8+4-(-10) 4. 5-(-6)(-3) 5. -8+(-36).÷6 6. (-2)5+6+2, 7. 2(-5)+6+3 8. 14-16+4+3 9.-12x4+3× (-8) 10. (-5)(14-5+3)
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