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What is the number? |  |  |  |  | Answers\u003Cbr>1.   |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 2) | 6 groups of 2 tens equals how many tens in all? |  |  |  | 2.   |  |  |  |  |  |  |  |\n| 3) | Sam has 3 bags with 8 stacks of ten pennies in each bag. How many stacks often pennies does he have in all? |  |  |  | 3.  \u003Cbr>4. |  |  |  |  |  |  |  |\n| 4) | The expression 4 × 90 can be read as 4 groups of   tens. What number is missing? |  |  |  | 5.   |  |  |  |  |  |  |  |\n| 5) | Henry builds 5 × 20 using base ten rods. He says it shows 5 groups of   tens. What number is missing? |  |  |  | 6.   |  |  |  |  |  |  |  |\n| 6) | Will builds the problem 2 × 90 using ten-frames. He says it shows 2 groups of   tens. What number is missing? |  |  |  | 7.   |  |  |  |  |  |  |  |\n| 7) | Bianca stacks 7 piles with 4 rows of ten blocks in each pile. How many rows often blocks does she have in all? |  |  |  | 8.  \u003Cbr>9.   |  |  |  |  |  |  |  |\n| 8) | A gardener plants 5 groups of 5 tens of seeds. This can be written as 5 ×   What number completes the multiplication problem? |  |  |  | 10.   |  |  |  |  |  |  |  |\n| 9) | On a chart, someone records 6 groups of 7 tens. This equals 6 ×   What number completes the multiplication problem? |  |  |  | 11.   |  |  |  |  |  |  |  |\n| 10) | A librarian arranges 9 shelves with 9 stacks of ten books on each shelf. How many stacks of ten books are there in all? |  |  |  | 12.  \u003Cbr>13. |  |  |  |  |  |  |  |\n| 11) | Maria draws 5 × 70 on grid paper. She explains it as 5 groups of   tens. What number is missing? |  |  |  | 14.   |  |  |  |  |  |  |  |\n| 12) | What is the value of 3 × 90? Hint: think of 3 groups of 9 tens. |  |  |  | 15.   |  |  |  |  |  |  |  |\n| 13) | A teacher writes '7 groups of 2 tens' on the board. This is the same as 7 ×   What number completes the multiplication problem? |  |  |  |  |  |  |  |  |  |  |  |\n| 14) | 3 shelves each hold 9 rows of ten books. How many rows of ten books are therein all? |  |  |  |  |  |  |  |  |  |  |  |\n| 15) | John counts 6 jars. Each jar has 2 groups of ten marbles. How many marbles are there in all? |  |  |  |  |  |  |  |  |  |  |  |\n|  | Math\u003Cbr>[www.CommonCoreSheets.com](www.CommonCoreSheets.com)\u003Cbr>1-10\u003Cbr>11-15 | 93 | 87 | 80 |  | 73 | 67 | 60 | 53 | 47 | 40 | 33 |\n|  |  | 27 | 20 | 13 |  | 7 | 0 |  |  |  |  |  |\n\nMultiplying with Groups of Tens  \nName: Answer Key  \n\n| Solve each problem.\u003Cbr>1) Isabel says a number is equal to 3 groups of 7 tens. What is the number? |  |  |  |  | Answers\u003Cbr>1.  210  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 2) | 6 groups of 2 tens equals how many tens in all? |  |  |  | 2.  12  |  |  |  |  |  |  |  |\n| 3) | Sam has 3 bags with 8 stacks of ten pennies in each bag. How many stacks often pennies does he have in all? |  |  |  | 3.  24  4. 9 |  |  |  |  |  |  |  |\n| 4) | The expression 4 × 90 can be read as 4 groups of   tens. What number is missing? |  |  |  | 5.  2  |  |  |  |  |  |  |  |\n| 5) | Henry builds 5 × 20 using base ten rods. He says it shows 5 groups of   tens. What number is missing? |  |  |  | 6.  9  |  |  |  |  |  |  |  |\n| 6) | Will builds the problem 2 × 90 using ten-frames. He says it shows 2 groups of |  |  |  | 7.  28  |  |  |  |  |  |  |  |\n| 7) |   tens. What number is missing?\u003Cbr>Bianca stacks 7 piles with 4 rows of ten blocks in each pile. How many rows often blocks does she have in all? |  |  |  | 8.  50  9.  70  |  |  |  |  |  |  |  |\n| 8) | A gardener plants 5 groups of 5 tens of seeds. This can be written as 5 ×   What number completes the multiplication problem? |  |  |  | 10.  81  |  |  |  |  |  |  |  |\n| 9) | On a chart, someone records 6 groups of 7 tens. This equals 6 ×   What number completes the multiplication problem? |  |  |  | 11.  7  |  |","cbCaihtv1xKP8sHn","https://ap.wps.com/l/cbCaihtv1xKP8sHn","pdf",44327,"English","# Solve each problem\n## Models and groupings of tens","[{\"question\":\"What does “groups of tens” mean in these problems?\",\"answer\":\"It means expressing a number as a certain number of tens (e.g., 3 groups of 7 tens equals 21 tens, which is 210).\"},{\"question\":\"How do the ten-frames, base ten rods, and grids help solve the worksheet?\",\"answer\":\"They model tens as units that can be counted in groups, making it easier to form multiplication expressions like 4 × 90 or 5 × 70 and then compute the product.\"},{\"question\":\"Where can I find the correct answers for each question?\",\"answer\":\"The document includes an “Answer Key” section listing the numerical solution for each problem number.\"}]","Multiplying with Groups of Tens - Answer Key | PDF",1790804149]