Introduction to Multiplication — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort each sentence into the correct category.
Skip Counting (Equal Groups)
3, 6, 9, 125, 10, 15, 204, 8, 12, 1610, 20, 30, 40 Not Skip Counting
1, 3, 5, 72, 5, 7, 10 Skip counting jumps by the same number every time, so 3, 6, 9, 12 adds 3 each step and 5, 10, 15, 20 adds 5. The others jump by different amounts, so they are not skip counting.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. Skip count by 2s five times: 2, 4, 6, 8, 10.
Skip counting by 2s adds 2 each jump, so after 8 the next number is 8 + 2 = 10.
2. 5 groups of 4 means 5 x 4.
In a multiplication sentence, the number after 'of' tells how many are in each group. Five groups of 4 becomes 5 x 4.
3. Skip count by 3s three times: 3, 6, 9.
When you skip count by 3s, each jump adds 3. After 6 comes 6 + 3 = 9.
4. 4 x 3 means 4 groups of 3.
The first number in a multiplication sentence tells how many groups there are. So 4 x 3 means 4 groups of 3.
5. Skip count by 5s four times: 5, 10, 15, 20.
Skip counting by 5s adds 5 with each jump, so after 15 the next number is 15 + 5 = 20.
Part C: True or False?
Read each statement. Circle True or False.
1. Skip counting by 2s three times gives 6, which is the same as 3 x 2.
True False
Counting 2, 4, 6 is three jumps of 2, and 3 x 2 also means three groups of 2. Both give 6.
2. 4 x 5 equals 25.
True False
4 x 5 means 5 + 5 + 5 + 5, which equals 20, not 25. The answer 25 would come from 5 x 5 instead.
3. 6 groups of 2 is the same as 2 + 2 + 2 + 2 + 2 + 2.
True False
Six groups of 2 means you add 2 six times, which matches 2 + 2 + 2 + 2 + 2 + 2 exactly. Both equal 12.
4. 3 x 3 equals 6.
True False
3 x 3 means 3 + 3 + 3, which is 9, not 6. The number 6 would be 3 x 2 or 2 x 3.