1. Add 22.486 + 17.44 + 423 + 0.186
A. 346.211
B. 463.112
C. 634.121
D. 643.112
2. Subtract 2.0357 from 846
A.348.9643
B. 438.9643
C. 843.9643
D. 883.9643
3. The addends are 2.6, 7.4, and 4.32. The total is
A. 14.32
B. 15.32
C. 16.32
D. 17.32
4. The difference of 91.421 and 45.854 is A. 46.765
B. 45.567
C. 44.123
D. 43.789
5. The sum of 1.021, 2.0008 and 3.142 is equal to
A. 4.1638
B. 5.1638
C. 6.1638
D. 7.1638
6. Increase 214.67 by 67.149.
A. 281.819
B. 280.818
C. 279.817
D. 278.816
7. 0.6494 decreased by 0.051 is
A. 0.5984
B. 0.5894
C. 0.5498
D. 5489​