Place Value
The column with the lowest value in our current place value chart.
What is the Ones column?
The operation in this problem:
21 + 3 = 24.
What is addition?
We use meters to measure this.
What is distance?
This is the term for a shape split in two parts.
What are halves? 1/2
We use this strategy for our Fluency Speed Trials.
If you have disks in this column, you'd better use a comma when writing your number!
What is the thousands column?
The operation in this problem:
21 - 3 = 18.
What is subtraction?
We use grams to measure this.
What is weight?
This is the term for a shape split into 4 parts.
What are fourths?
This tool might use a piece of masking tape, or you can draw a long rectangle.
What is a tape diagram?
We multiply by 10 on the place value chart by doing this.
What is moving the values to the left?
The operation in this problem:
21 x 3 = 63.
Multiplication
We use liters to measure this.
What is volume?
The vocabulary term for a whole number and a fraction, together.
What is a mixed number?
Draw a box to use this strategy and label the sides, but don't worry about the perimeter!
What is the area model?
We can make groups/rows in the bottom of our place value chart to help with this operation.
(Remember: Operations= + - x ÷)
What is division?
The operation in this problem:
21 ÷ 3 = 7.
What is division?
This prefix, or start to a word, means 1,000. (Hint: _____meter)
What is "kilo"?
This is the vocabulary word for splitting a shape into equal parts.
What is partition?
This strategy uses rows and columns to multiply, often with objects or disks.
What is an array?
When we have more than 10 disks in one column (for example, 12 tens), we can do this to simplify.
What is bundling/regrouping?
What is division?
The number of grams in a kilogram.
If I want to split a shape into 3 parts, I'll use this many lines.
What are 2 lines? (one less than the number of parts!)
This strategy for division uses a "shelter" that the dividend is hiding under. For multiplication, it's a vertical equation.
What is the standard algorithm?