1) 3/5 + 1/5 = ______ 2) 1 1/2 + 3/4 = ______
3) 6/( 7 )- 1/2 = ______ 4) 11/8 x 2/5 = _______
5) 2 1/3 ÷ 1/4 = _______
C. Decimals
1) 2.005 + 4.0078 = ___________
2) 89.62 – 71.55 = __________
3) 2.71 x 3.1 = ___________
4) 25.6310 ÷ 0.02 = __________
5) 2.38 x 12.05 = __________
D. Integers
1) (-22) + (-16) = ___________
2) 21 + (-21) + (-4) = ___________
3) (-8) + (-4) + 23 = ___________
4) (-168)÷(42) = ___________
5) (-27)(-13) = ___________
E. Polynomials
1) 7x + 2x + 19x = __________
2) -6x – 3 + 3x – 9 = __________
3) (3x–4y) – (x+2y) = __________
4) 18x^5 ÷ 6x^3 = __________
5) (x+5)(x-7) = __________
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Answer:
1) 3/5 + 1/5 = 4/5
2) 1 1/2 + 3/4 = 2 1/4
3) 6/( 7 )- 1/2 = 5/14
4) 11/8 x 2/5 =11/20
5) 2 1/3 ÷ 1/4 =9 1/3
C.Decimals
1.6.0128
2.18.07
3.8.401
4.1281.55
5.28.679
D.Integers
1.-38
2.-4
3.11
4.-4
5.351