Addition Properties
Identify the addition property:
13 + 0 = 13
Identity Property
tell if the answer will be even or odd ; 3 + 5
even = 8
estimate the sum by rounding each addend to the nearest ten:
682 + 121
680 + 120 = 800
add using regrouping; 157 + 217
374
Today 12 tulips bloomed. No roses bloomed. Use the
Identity Property of Addition to write an equation
showing how many flowers bloomed today.
12 + 0 = 12
Identify the property:
55 + 23 = 23 + 55
commutative property
tell if the answer will be even or odd ; 22 + 7
estimate the sum by rounding each number to the nearest ten:
325 + 417 + 262
330 + 420 + 260 = 1010
add using regrouping: 339 + 415
754
In March, a store sells 312 gallons of milk, 175 gallons
of orange juice, and 79 gallons of all other kinds of juice.
Does the store sell more milk or juice in March? Explain.
they sell more milk.
Identify the Property: (85 + 36) + 5 = 85 + (36 + 5)
Associative Property
tell if the answer will be even or odd ; 3 + 6 + 9
even: 18
estimate the sum by rounding each number to the nearest hundred:
245 + 283
200 + 300 = 500
add using partial sums : 388 + 483
Customers can buy two kinds of apples at a fruit stand.
On one day, customers bought 53 green apples.
Customers bought 17 more red apples than green apples.
Use the bar model to represent this situation.
show your work to get points!
Add the missing number and tell the addition property
(38 + 50) + 4 = (__ + 38) + 4
(38 + 50) + 4 = (50 + 38) + 4; commutative property
fill win the blank a number that will make the sentence true ;
odd + 8 +___ = even
__ check !
estimate the sum by rounding each number to the nearest hundred:
456 + 821 + 311
600 + 800 + 300 = 1700
add using partial sums: 526 + 222
748; show your work to get the points
John and Clark EACH save $177. Peter saves $234.
How much money do the three boys save all together? Use a bar model to solve
388 ; show your work!
Add the missing number and tell the addition property
(64 + 22) + 2 = 64 + (22 + __)
(64 + 22) + 2 = 64 + (22 + 2); associative property
fill win the blank a number that will make the sentence true ;
9 + ____ = odd
estimate the sum by rounding each number to the nearest ten, then find the real sum!
495 + 26 + 162
500 + 30 + 160 = 690
add using partial sums : 121 + 456 + 233
811
Last week, 342 adults and 218 children visited a park.
Use partial sums to find how many people visited the
park last week. Explain.
560