1. Math Enrichment for the Christmas Break The math problems below come from the standards we have already discussed during the 1 semester of school. Add or Subtract with Decimals 234.9 863.07 129.76 765.2 546.09 214.65 + ++ Multiply or Divide 46 34 x 23 57 x 98 26 x 49 85 x 28 71 x Multiply with Multiples 506.23 217.81 - 330.9 214.65 - 40 x 200 = ______ 300 x 12 = ______ 50 x 11 =_______ 320 x 10=_______ 231469 23 764797415231

2. Divisibility: Put a check in the box if the number is divisible by that number. Number23456910 45 163 372 566 45,930 123,456 Find the Greatest Common Factor of the following numbers. 12: 24: 3: 6: 27: 42: Find the Least Common Multiple of the following numbers. 12: 60: 3: 36: 7: 42:

3. Rule x 9Rule - 2 InputOutputInputOutput 11 12 4 3 7 28 1 6 6 12 Rule X 4 Rule - 5 InputOutputInputOutput 8 7 3 34 4 14 12 8 9 22 Rule + 3Rule + 4 InputOutputInputOutput 13 1 3 2 1 76 18 4 6 45 Input and Output Tables: Find the output Find the sum, difference, product or quotient by solving for X = 4. 1. 8 ÷ X = _______________2. 14 – X = _______________ 3. 17 + X = _____________4. 4 x X = ________________ 5. 75 + X = _____________6. 12 x X = _______________ 7. 28 ÷ X = ____________8. 16 ÷ X = ____________

4. Rounding Numbers to the 10’s, 100’s and 1,000’s Place Practice Round the following numbers to the 10’s Place. 1.) 84 __________ 2.) 19 __________ 3.) 735 ___________ 4.) 46 _________ 5.) 1,708 __________ Round the following numbers to the 100’s Place. 6.) 999 __________ 7.) 325,555 __________ 8.) 2,277 ___________ 9.) 11,305 ___________ 10.) 491 __________ Round the following numbers to the 1000’a Place 11.) 456,789 __________ 12.) 23,941 __________ 13.) 8,089 __________ 14.) 32,502 __________ 15.) 7,180 __________ 73, 62, 51, 40 ______ ______ ______Rule: ________ 10, 20, 30, 40 ______ ______ ______ Rule: ________ 7, 14, 21, 28 ______ ______ ______ Rule: ________ 3, 9, 27, 81 ______ ______ ______ Rule: ________ 5, 25, 125, 625 ______ ______ ______ Rule:________ 1, 9, 81, 729 ______ ______ ______ Rule: ________ 1, 4, 16, 64 ______ ______ ______ Rule: ________ 0.5, 1.0, 1.5, 2.0 ______, ______, _____Rule: ________ 198, 184, 170, 156 ______ ______ ______ Rule: ________ Patterns: Find the next 3 numbers and write the rule.

5. 1 3 2 4 5 0 6 1234506 1 3 2 4 5 0 6 1234506 Put a star at the following coordinates on the graph. (2,3) (0,3) (4,6) (6,2) (6,4) (1,4) Write the coordinate of each symbol below. ______ What is the path from the sun to the face? Coordinate Plane: Graphing

6. Directions: Write the place of the underlined digit. 510,789.09__________237,230,980 __________ 951,359__________1,781,509__________ 388,740.76__________968,257.6__________ 539,268,890__________588,526.060__________ 106,006.98__________107,780__________ Directions: Compare the numbers below. Put, or =. 510,789.8_______ 237,230.80981,509________781,509 968,257.09________968,257.90539,268________588,526 106,006________107,00689,236________9,236 102,867.88________102,876.8830,785.08________30,785.080 Directions: Write the number in word form. 1,765,049.98 12,870.07 970,812.23