Multiply by One Digit Number

To multiply two numbers using models, model the numbers in groups

Combine the groups of ones and tens separately

Regroup the ones and tens, and find the total

To multiply using partial products, divide the number into two parts. For example, to multiply 35 by 3, divide 35 into 30 and 5

Multiply each part separately, e.g. 30 x 3 and 5 x 3

Add the two partial products

To multiply two numbers, first multiply the ones and then the tens and add both the products

If ones is greater than 9, we need to regroup

14 ones is equal to 1 tens and 4 ones

When multiplying numbers that contain decimals, first multiply as with whole numbers, and then count the number of decimal places in each factor

Add the total number of places from both factors. Move the decimal point that many places to the left in the product