Patterns in Times Tables

Question 1

In the addition table, the sums in the row for 4 are shown as follows: 4 + 0 = 4, 4 + 1 = 5, 4 + 2 = 6, 4 + 3 = 7. Using the same pattern, what is 4 + 7?

Accepted Answer

11

Answer

10

Answer

12

Answer

9

Question 2

Look at this part of the addition table: + | 4 | 5 | 6 4 | 8 | 9 |10 5 | 9 |10 |11 6 |10 |11 |12 Which statement correctly describes the pattern in each row?

Accepted Answer

Each number in a row is 1 more than the number to its left.

Answer

Each number in a row is the product of the row header and the column header.

Answer

Each number in a row is 2 more than the number to its left.

Answer

Each number in a row is the same as the number above it.

Question 3

Lila writes these multiplication facts: 4 × 7 = 28, 5 × 7 = 35, 6 × 7 = 42, 7 × 7 = 49. Which statement best explains why each product is exactly 7 more than the one before it?

Accepted Answer

Each time the first number increases by 1, we add 7 to the previous product because (n+1)×7 = n×7 + 7.

Answer

Every new product is found by multiplying the previous product by 7.

Answer

Since 7 is odd, the tens digit always goes up by 1 in the next product.

Answer

Multiplication is commutative, so 7 × 4 is the same as 4 × 7, which makes the numbers grow.

Try three questions

In the addition table, the sums in the row for 4 are shown as follows: 4 + 0 = 4, 4 + 1 = 5, 4 + 2 = 6, 4 + 3 = 7. Using the same pattern, what is 4 + 7?

Look at this part of the addition table: + | 4 | 5 | 6 4 | 8 | 9 |10 5 | 9 |10 |11 6 |10 |11 |12 Which statement correctly describes the pattern in each row?

Lila writes these multiplication facts: 4 × 7 = 28, 5 × 7 = 35, 6 × 7 = 42, 7 × 7 = 49. Which statement best explains why each product is exactly 7 more than the one before it?

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