Mathematics essentials 10 Mental Math
B16 know the double facts in additions; their extension to 2-, 3-, and 4- digits; their connections to subtraction, multiplication be 2 and by ½, division be 2 and multiplication by 50%
B17 know the addition and subtraction facts and extend them to 2-, 3-, and 4-digit numbers
B18 estimate appropriate sums, differences, products, and quotients
B19 mentally calculate 1%, 10%, 15%, and 50% of quantities that are compatible with these percents
B20 estimate percents of quantities
B17 know the addition and subtraction facts and extend them to 2-, 3-, and 4-digit numbers
B18 estimate appropriate sums, differences, products, and quotients
B19 mentally calculate 1%, 10%, 15%, and 50% of quantities that are compatible with these percents
B20 estimate percents of quantities
- Mental Math Booklet and powerpoint file for Mathematics Essentials 10
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