Riddle for 9/4/19
A little boy goes shopping and purchases 12 tomatoes. On the way home, all but 9 get mushed and ruined. How many tomatoes are left in a good condition?
A little boy goes shopping and purchases 12 tomatoes. On the way home, all but 9 get mushed and ruined. How many tomatoes are left in a good condition?
MATH
MATH MATTERS NOTEBOOK
Math Matters Notebook
Unit 1
addend One or two or more numbers added together to find a sum.
greater than A symbol used to compare two numbers. The open end ‘eats’ the greater
(>) number.
digit Any of the symbols 0,1,2,3,4,5,6,7,8,9
inverse Opposite or reverse operations that undo each other. Addition &
operations subtraction are inverse operations. Multiplication & division are inverse
operations.
expanded A way of writing a number that shows the value of each of its digits.
form Expanded form of 835: 800+30+5
less than A symbol used to compare two numbers. The pointed end points
(<) at the lesser number.
Place value The value assigned to the place that a digit occupies in a number.
Unit 2
Area The number of square units that cover a figure.
Estimate A number close to an exact amount or to find about how many or how much.
Array An arrangement of objects, symbols, or numbers in rows and columns.
Factor One or two or more numbers multiplied to find a product.
Distributive You can multiply a sum by a number, or multiply each added by the number and
Property add the products; the result is the same. 3x(2+4) = (3x2)+(3x4)
Partial product The product of the ones, or tens, or hundreds, and so on in multidigit
multiplication.
Product The answer to a multiplication problem.
Rounding Finding the nearest ten, hundred, thousand or some other place value. The
Usual rounding rule is to round up if the next digit to the right is five or more
& round down if the next digit to the right is less than five.
Square unit An unit of area equal to the area of a square with one-unit sides.
Unit 1
addend One or two or more numbers added together to find a sum.
greater than A symbol used to compare two numbers. The open end ‘eats’ the greater
(>) number.
digit Any of the symbols 0,1,2,3,4,5,6,7,8,9
inverse Opposite or reverse operations that undo each other. Addition &
operations subtraction are inverse operations. Multiplication & division are inverse
operations.
expanded A way of writing a number that shows the value of each of its digits.
form Expanded form of 835: 800+30+5
less than A symbol used to compare two numbers. The pointed end points
(<) at the lesser number.
Place value The value assigned to the place that a digit occupies in a number.
Unit 2
Area The number of square units that cover a figure.
Estimate A number close to an exact amount or to find about how many or how much.
Array An arrangement of objects, symbols, or numbers in rows and columns.
Factor One or two or more numbers multiplied to find a product.
Distributive You can multiply a sum by a number, or multiply each added by the number and
Property add the products; the result is the same. 3x(2+4) = (3x2)+(3x4)
Partial product The product of the ones, or tens, or hundreds, and so on in multidigit
multiplication.
Product The answer to a multiplication problem.
Rounding Finding the nearest ten, hundred, thousand or some other place value. The
Usual rounding rule is to round up if the next digit to the right is five or more
& round down if the next digit to the right is less than five.
Square unit An unit of area equal to the area of a square with one-unit sides.