A number pattern is a list of numbers that follow a sequence. The numbers in the pattern can increase or decrease.
The rule is the pattern in the number sequence.
Examples:
12, 14, 16, 18, 20 Rule: Start at 12, then add 2
2.5, 2.0, 1.5, 1.0 Rule: Start at 2.5, then subtract 0.5
What is a Number Pattern?
What other words can we use that mean the same as addition?
Addition
Discuss this with a partner before sharing your answers with the whole group.
Answers
add, plus, altogether, total
What other words can we use that mean the same as subtraction?
Subtraction
Discuss this with a partner before sharing your answers with the whole group.
Answers
take away, subtract, difference, less
a. 388, 378, 368, 358, 348, 338
b. 10.2, 10.22, 10.24, 10.26, 10.28
Number Patterns
Answer
b. 10.2, 10.22, 10.24, 10.26, 10.28
Which number pattern is increasing?
Number Patterns
250, 500, 750, ,
1000
1250
What are the next 2 numbers in this number pattern?
Number Patterns
515, , 545, 560,
530
575
What are the 2 missing numbers in this number pattern?
Number Patterns
61, 48, 35, ,
22
9
What are the next 2 numbers in this number pattern?
What is the rule for this number pattern?
Number Patterns
1.20, 1.30, 1.40, 1.50, 1.60
Answer
d. Start at 1.20 then Add 0.10
Match the pattern to the rule.
Number Patterns
2.05, 2.10, 2.15, 2.20, 2.25, 2.30 | 8.8, 7.7, 6.6, 5.5, 4.4, 3.3 | 10.09, 10.07, 10.05, 10.03, 10.01, 9.09 | 12.12, 13.12, 14.12, 15.12, 16.12, 17.12 |
Subtract 1.10 | Add 1.0 | Add 0.05 | Subtract 0.02 |