Math Algorithms
Partial Sums is the algorithm we use to solve multi-digit addition problems.
Draw a line down (vertically) to separate the ones, tens, and hundreds columns.
Add the hundreds and write the sum.
Add the tens and write the sum.
Add the ones and write the sum.
Add the sums together.
Trade First is the algorithm we use to solve multi-digit subtraction problems.
Can you subtract the hundred's place? If not, then trade first.
Can you subtract the tens place? If not, then trade first.
Can you subtract the ones place? If not, then trade first.
Do all of your subtracting to get the answer.
Draw a line down (vertically) to separate the ones, tens, and hundreds columns.
Add the hundreds and write the sum.
Add the tens and write the sum.
Add the ones and write the sum.
Add the sums together.
Trade First is the algorithm we use to solve multi-digit subtraction problems.
Can you subtract the hundred's place? If not, then trade first.
Can you subtract the tens place? If not, then trade first.
Can you subtract the ones place? If not, then trade first.
Do all of your subtracting to get the answer.
Websites to Practice Math Facts
www.aaamath.com
www.mathplayground.com
www.mathfactspro.com
www.aplusmath.com
www.funbrain.com/math
https://xtramath.org
www.funbrain.com
www.mathblaster.com
www.mathplayground.com
www.mathfactspro.com
www.aplusmath.com
www.funbrain.com/math
https://xtramath.org
www.funbrain.com
www.mathblaster.com
iPad Apps for Math
This=That
10 Frame Fill
Splash Math
Math Blaster
Math Puppy
NumberScale
Math Drills Lite
FunMath
MathSplash Bingo
Monster Math
Add Up
Tens Frame Lite
Bugs and Bubbles
Hungry Fish
SushiMonster
Creature Math
Pizza Fractions
AstroMathFree
Geoboard
Farmers Market
Math Monsters
Everyday Mathematics Monster Squeeze
Everyday Mathematics Addition Top-It
Everyday Mathematics Fractions
Everyday Mathematics Beat the Computer Multiplication
Measure
Tap to Learn Measure
Tap to Learn Wake the Rooster
Interactive Telling Time Lite
Telling Time
Telling Time Quiz
Amazing Time
Little Matchups Tell Time
10 Frame Fill
Splash Math
Math Blaster
Math Puppy
NumberScale
Math Drills Lite
FunMath
MathSplash Bingo
Monster Math
Add Up
Tens Frame Lite
Bugs and Bubbles
Hungry Fish
SushiMonster
Creature Math
Pizza Fractions
AstroMathFree
Geoboard
Farmers Market
Math Monsters
Everyday Mathematics Monster Squeeze
Everyday Mathematics Addition Top-It
Everyday Mathematics Fractions
Everyday Mathematics Beat the Computer Multiplication
Measure
Tap to Learn Measure
Tap to Learn Wake the Rooster
Interactive Telling Time Lite
Telling Time
Telling Time Quiz
Amazing Time
Little Matchups Tell Time