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Problems cover a range of factor sizes such as 160×80, 40×120, 500×30, 60×800, and 140×40, along with smaller combinations like 16×8 and 4×12. The document provides the worked results for items 1 through 14, supporting efficient decomposition into tens, hundreds, and halved values for consistent 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--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 1) 160 × 80 = 2) 40× 120 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 16 × 8 = 4 × 12 = |  |  |  |  |  |  |  |  | 1.   |  |  |  |  |  |  |\n| 8 × 8 =  4 × 6 =  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 3) 500 × 30 = 4) 60× 800 = |  |  |  |  |  |  |  |  | 2.  \u003Cbr>3.   |  |  |  |  |  |  |\n| 50 × 3 = \u003Cbr>5 × 3 =  |  | 6 × 80 = \u003Cbr>6 × 8 =  |  |  |  |  |  |  | 4.   |  |  |  |  |  |  |\n| 5) 90 × 60 = 6) 80× 24 = |  |  |  |  |  |  |  |  | 5.  \u003Cbr>6.   |  |  |  |  |  |  |\n| 60 × 9 = 8 × 12 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 9 × 6 =  8 × 6 =  |  |  |  |  |  |  |  |  | 7.   |  |  |  |  |  |  |\n| 7) 100 × 40 = 8) 80× 50 = |  |  |  |  |  |  |  |  | 8.  \u003Cbr>9.   |  |  |  |  |  |  |\n| 10 × 4 = 5 × 80 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 5 × 4 =  8 × 5 = \u003Cbr>9) 20 × 50 =  10) 140 × 40 =  10 × 5 = 14 × 4 = |  |  |  |  |  |  |  |  | 10.  \u003Cbr>11.  \u003Cbr>12.   |  |  |  |  |  |  |\n| 5 × 5 = 7 × 4 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 11) 90× 24 = 12) 30× 800 = |  |  |  |  |  |  |  |  | 13.  \u003Cbr>14.   |  |  |  |  |  |  |\n| 9 × 12 = 3 × 80 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 9 × 6 = 3 × 8 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 13) 90× 50 = 14) 120 × 30 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 5 × 90 =  12 × 3 =  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 9 × 5 = 6 × 3 = |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| \u003Cbr>Math | [www.CommonCoreSheets.com](www.CommonCoreSheets.com) |  | 5 | 1-10\u003Cbr>11-14 | 93 | 86 | 79 | 71 |  | 64 | 57 | 50 | 43 | 36 | 29 |\n|  |  |  |  |  | 21 | 14 | 7 | 0 |  |  |  |  |  |  |  |\n\nUsing Powers of Ten and Halves  \nName: Answer Key  \n\n| Break each problem down using powers of ten and/or halves to solve.\u003Cbr>1) 160 × 80 = 12,800  2) 40× 120 = 4,800 \u003Cbr>16 × 8 = 128  4 × 12 = 48 \u003Cbr>8 × 8 = 64  4 × 6 = 24 \u003Cbr>3) 500 × 30 = 15,000  4) 60× 800 = 48,000 \u003Cbr>50 × 3 = 150  6 × 80 = 480 \u003Cbr>5 × 3 = 15  6 × 8 = 48 \u003Cbr>5) 90 × 60 = 5,400  6) 80× 24 = 1,920 \u003Cbr>60 × 9 = 540  8 × 12 = 96 \u003Cbr>9 × 6 = 54  8 × 6 = 48 \u003Cbr>7) 100 × 40 = 4,000  8) 80× 50 = 4,000 \u003Cbr>10 × 4 = 40  5 × 80 = 400 \u003Cbr>5 × 4 = 20  8 × 5 = 40 \u003Cbr>9) 20 × 50 = 1,000  10) 140 × 40 = 5,600 \u003Cbr>10 × 5 = 50  14 × 4 = 56 \u003Cbr>5 × 5 = 25  7 × 4 = 28 \u003Cbr>11) 90× 24 = 2,160  12) 30× 800 = 24,000 \u003Cbr>9 × 12 = 108  3 × 80 = 240 \u003Cbr>9 × 6 = 54  3 × 8 = 24 \u003Cbr>13) 90× 50 = 4,500  14) 120 × 30 = 3,600 \u003Cbr>5 × 90 = 450  12 × 3 = 36 \u003Cbr>9 × 5 = 45  6 × 3 = 18  |  |  |  |  |  |  |  | Answers 1.  12,800  2.  4,800  3.  15,000  4.  48,000  5.  5,400  6.  1,920  7.  4,000  8.  4,000  9.  1,000  10.  5,600  11.  2,160  12.  24,000 \u003Cbr>13.  4,500  14.  3,600  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| \u003Cbr>Math | [www.CommonCoreSheets.com](www.CommonCoreSheets.com) | 5 | 1-10\u003Cbr>11-14 | 93 | 86 | 79 | 71 | 64 | 57 | 50 | 43 | 36 | 29 |\n|  |  |  |  | 21 | 14 | 7 | 0 |  |  |  |  |  |  |\n\nUsing Powers of Ten and Halves  \nName:  \n\n| Break each problem down using powers of ten and/or halves to solve. |  |  | Answers\u003Cbr>1.  \u003Cbr>2.  \u003Cbr>3.  \u003Cbr>4.  \u003Cbr>5.  \u003Cbr>6.  \u003Cbr>7.  \u003Cbr>8.   |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 12,800 5,400 48,000 4,000 4,800 4,000 15,000 1,920 |  |  |  |  |  |  |  |  |\n| 1) 160 × 80 =  2) 40× 120 =  16 × 8 =  4 × 12 = \u003Cbr>8 × 8 =   4 × 6 = \u003Cbr>3) 500 × 30 =  4) 60× 800 = \u003Cbr>50 × 3 =  6 × 80 = \u003Cbr>5 × 3 =   6 × 8 = \u003Cbr>5) 90 × 60 =  6) 80× 24 = \u003Cbr>60 × 9 =  8 × 12 =  9 × 6 =  8 × 6 = \u003Cbr>7) 100 × 40 =  8) 80× 50 =  10 × 4 =  5 × 80 =  5 × 4 =   8 × 5 =  |  |  |  |  |  |  |  |  |\n| 1-8 | 88 | 75 | 63 | 50 | 38 | 25 ","cbCaifYPitOhiWzm","https://ap.wps.com/l/cbCaifYPitOhiWzm","pdf",45884,"English","# Problems\n## Answer Key","[{\"question\":\"What method does this worksheet emphasize for solving multiplication problems?\",\"answer\":\"It emphasizes breaking problems down using powers of ten and/or halves to make multiplication easier.\"},{\"question\":\"How many main multiplication problems are included?\",\"answer\":\"The answer key lists results for 14 problems.\"},{\"question\":\"What kind of multiplication facts appear in the set?\",\"answer\":\"The set includes both large products (like 160×80 and 500×30) and smaller ones (like 16×8 and 4×12) to practice the decomposition strategy.\"}]","Using Powers of Ten and Halves - Math Worksheet Answer Key | PDF",1790792451]