Comparing with multiplication

The first instance of  is under the 4th Grade Math Mission. This exercise helps to understand comparison of numbers via multiplication, i.e., how many times larger or smaller a number is than another number.

Types of Problems
There are three types of problems in this exercise:


 * 1) Write equation: This problem describes a multiplication fact. The student is asked to write the multiplication fact in symbols.CM1.png
 * 2) Fill in blanks: This problem asks to compare numbers via multiplication. The student is asked to fill in either one or two blanks to describe the multiplication fact. The example shown here is one with a single blank to fill in.CM2.png
 * 3) Sum versus product: This problem describes how two numbers are related to each other via addition. The student is to fill in a blank to find a relation between the numbers via multiplication.CM3.png

Strategies
This exercise is easy to get accuracy badges because the products and numbers are all within the standard 10 by 10 multiplication table. Speed badges are also easy because the answers all follow a standard template and can be filled in quickly.


 * 1) On Write equation it appears you will always use the = sign.
 * 2) "Write equation'' should be done in same form as the other problems (full product on the left of the equals sign) so that you can get into a habit of reading the multiplication corrects for the other problems.
 * 3) On "Fill in blanks and Sum versus product'' the blanks are always the product first, and the two numbers being multiplied in the last two spots.
 * 4) Sum versus product can be done without reading the addition comparison. Perform the problem just like Fill in blanks.