... adding and subtracting decimals is that the decimal places must belined up.a. 3.6 b. 5 .98 4+5.61 –2.34 9. 21 3.644MULTIPLYING DECIMALSMultiply as usual, and count the total number of decimal ... 4xy2ϫ 35 ϫ 3ϩ2 ϫ 53 ϫ 5LCD ϭ xyLCD ϭ 153yϩ4xy25ϩ2332x4xyϭ8y6 9 ϭ23– ARITHMETIC–3 29 When problems arise that involve even and odd numbers, you can use substitution to ... 3, 4, and 5, or –11, –10, and 9. Consecutive even integers are numbers like 10, 12, and 14 or –22,–20, and –18. Consecutive odd integers are numbers like 7, 9, and 11. When they are used in...