Pattern Power
What is the method or step you take to find the "gap" or difference between two numbers like 23 and 28?
You start at the smaller number and count up to the larger number (or subtract the smaller number from the bigger one). The gap is 5!
In the number 981, what place value is the underlined digit in?
The Tens place! (And it stands for 80).
In the equation 5 + 4 = 9, what math vocabulary words do we use for the numbers 5, 4, and 9?
5 and 4 are called addends, and 9 is the sum.
Which metric unit (cm, m, or km) would you use to measure the distance between two distant towns?
Kilometres (km).
If a pattern goes: 26, 34, 42... what is the rule to continue it?
Find the gap by counting up (+8). Then add 8 to the last number to get 50!
Break down 627 into its separate hundreds, tens, and ones places.
6 hundreds + 2 tens + 7 ones.
If 14 + 8 = 22, how do you instantly know the answer to 8 + 14 without adding?
By using the Commutative Property! Changing the order of addends doesn't change the sum. It is 22.
How many centimetres are equal to 2 metres?
200 centimetres (1 m = 100 cm).
When a pattern goes down (like 42, 37, 32), what action are you doing to find the next numbers?
You are subtracting! The rule is to subtract 5 each time to get 27.
How do you fully convert 3 hundreds + 5 tens into just tens?
3 hundreds is equal to 30 tens, so 30 tens + 5 tens = 35 tens.
How can you turn the addition sentence 9 + 3 = 12 into a subtraction sentence?
Start with the sum! 12 - 3 = 9 or 12 - 9 = 3.
What is the method for finding the total perimeter around a triangle with sides of 4 cm, 5 cm, and 6 cm?
What is a quick mental step to solve: "____ is 8 more than 57"?
You add 8 to 57! The answer is 65.
When comparing 573 and 537, how do you decide which one is larger?
Look at the highest place value first (hundreds are the same), then check the tens place. 7 tens is bigger than 3 tens, so 573 is larger.
To solve 49 + 26 mentally, how can you change the numbers to make them friendlier to add?
Move 1 from the 26 over to the 49! It becomes 50 + 25 = 75.
In a growing pattern of squares placed side-by-side, Figure 1 has a perimeter of 4, Figure 2 is 6, and Figure 3 is 8. What is the pattern rule for the perimeter?
It increases by 2 units each time.
How do you find the missing value in "69 is ____ less than 77"?
You count backwards from 77 to 69 (or do 77 minus 69) to find the difference, which is 8.
Use the regrouping trick to solve this: 18 ones = ____ ten + ____ ones.
1 ten + 8 ones.
Instead of counting backwards, what strategy can you use to mentally find 42 - 38?
Count up from 38 to 42! (39, 40, 41, 42 = a difference of 4).
Convert 1 metre and 45 centimetres into just centimetres.
145 cm (because 1 m = 100 cm, plus the 45 cm).