4th grade math skills - summit hill · 2018. 2. 21. · 4th grade math skills summer is a time for...
TRANSCRIPT
4th Grade Math Skills
Summer is a time for students to recharge their batteries and spend time with friends and
family, making memories that will last a life time. This is an important part of their lives, as
they grow up to become well-round and successful. Students have also worked incredibly
hard these past several months learning a huge variety of math skills and working to apply
these skills to word problems. Over the course of the summer, students may find that they
lose these skills that they worked so hard to learn. These skills will serve as a foundation for
new skills in 5th grade. In order to help your student to retain these skills and be successful
in 5th grade, I have compiled a guide to review what we have covered in 4th grade.
Please continue to revisit these skills, if even for 5 minutes a week via a game under my
cool links. I will leave all of the online resources available throughout the summer.
Read and write numbers through hundred thousand
Standard: 472,194
Word: four hundred seventy two thousand, one hundred ninety four
Expanded: 400,000 + 70,000 + 2,000 + 100 + 90 + 4
Compare and order numbers
592,485 > 591,384 Greatest to least: 582,948 - 582,482 - 482,948
Round numbers
Round to greatest place: (Look to your neighbor—Four or less, let it rest. Five or
more raise the score)
847,374 rounds to 800,00 because 4 is next to the 8. It is less, so you let it rest at 8
869,384 rounds to 900,000 because 6 is next to the 8. It is more, so you raise the 8 to 9
Add and subtract whole numbers
Focus on regrouping
Solve Comparison word problems using bar models
4th Grade Math Skills
Model multiplication comparisons & solve comparison word problems
Multiply tens, hundreds, and thousands
3 x 700 = 2,100 (Basic fact 3x7=21. Add two zeros)
80 x 5,000 = 400,000 (Basic fact 8x5 = 40. Add the four zeros)
Estimate products
By 1 Digit: Round the larger number to the greatest place. Then use basic facts
and count the zeros to multiply: 3,485 x 6 —> 3,000 x 6 = 18,000
By 2 Digits: Round both numbers to the greatest place. Then use basic facts and
count the zeros to multiply: 48,134 x 29 —> 50,000 x 30 = 1,500,000
Multiply using expanded form
By 1 Digit
4th Grade Math Skills
Multiply using area models and partial products
Solve multi-step multiplication problems
4th Grade Math Skills
Multiply with regrouping (traditional)
Divide tens, hundreds, and thousands
25,000 5 = 500 (Basic fact: 25 5 = 5. Add the three zeros)
Estimate quotients
24,582 5 = ___ 24 is closest to 25. Round the number using 25 and divide.
25,000 5 = 500 (Basic fact: 25 5 = 5. Add the three zeros)
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40.
4th Grade Math Skills
Divide using regrouping
Find equivalent fractions and determine if fractions are equivalent or not
Write fractions in simplest form
4th Grade Math Skills
Write fractions with common denominators
1. List the first few multiples for each
denominator.
2. Find the least common multiple from the two
lists. This becomes your new denominator for
each.
3. Write two new (equivalent) fractions with the
common denominator.
Compare fractions
Add and subtract fractions
Add the numerator. Denominator Subtract the numerator. Denominator stays
stays the same. the same.
4th Grade Math Skills
Decompose fractions
Rename mixed numbers and improper fractions
4th Grade Math Skills
Add and subtract mixed numbers