Adding like a Pro
Using the ADD LIKE UNITS WAY !!!
Solve : 57 + 39 =
50 + 30 = 80
7 + 9 = 16
57 + 39 = 96
USING BENCHMARK NUMBERS
SUBTRACT: 89 - 54 =
89 - 50 = 39
39 - 4 = 35
89 - 54 = 35
There are 24 blue crayons and 15 red crayons in a box. How many crayons are there in all?
Use BENCHMARK NUMBERS
Answer In COMPLETE SENTENCE.
24 + 10 = 34
34 + 5 = 39
There are 39 crayons in all.
A class has 482 books. 41 books are borrowed. How many books are still in the class?
USE PLACE VALUE WAY
ANSWER IN COMPLETE SENTENCE.
482 - 41 = 441
There are 441 books in the class.
Using COMPENSATION:
Add: 54 + 29 =
54 + 30 = 84
84 - 1 = 83
54 + 29 = 83
Using COMPENSATION:
Subtract: 96 - 39 =
96 - 40 = 56
56 + 1 = 57
96 - 39 = 57
A class read 32 pages on Monday and 27 pages on Tuesday. How many pages did they read altogether?
SOLVE USING COMPENSATION
Answer in COMPLETE SENTENCE
32 + 30 = 62
62 - 3 = 59
The class read 59 pages altogether.
he library has 168 books. 36 books are checked out. How many books are left?
USE ANY WAY
Answer in Complete sentence
168 - 36 = 132
There are 132 books left.
Using BENCHMARK NUMBERS !!!
SOLVE: 100 + 37
100 + 30 = 130
130 + 5 = 135
135 + 2 = 137
Using COMPENSATION:
153 - 27 =
153 - 30 = 123
123 + 3 = 126
153 - 27 = 126
There are 46 students on the playground and 18 more join them. How many students are on the playground now?
USE THE PLACE VALUE WAY
ANSWER IN COMPLETE SENTENCE
There are 64 students in the playground now.
A teacher collected 532 math cards. 67 cards were lost. How many math cards are still there?
Use COMPENSATION
Answer in Complete Sentence
There are 465 math cards still there.
532 - 67 = 465
Using The MAKE A TEN WAY
SOLVE: 38 + 24
38 + 24 =
38 + 2 = 40
40 + 22 = 62
38 + 24 = 62
USING TAKE FROM 10 METHOD:
283 - 57 =
283 - 57 = 226
The cafeteria made 186 lunches in the morning and 29 more in the afternoon. How many lunches were made altogether?
USE COMPENSATION
ANSWER IN COMPLETE SENTENCE
186 + 30 = 216
216 - 1 = 215
There were 215 lunches made altogether.
A library had 700 books. 86 books were checked out. How many books are still in the library?
USE ANY WAY
Answer in Complete Sentence
There are 614 books still in the library.
USING THE PLACE VALUE WAY:
Solve: 126 + 47 =
126 + 47 = 173
USING PLACE VALUE WAY:
SUBTRACT: 367 - 48
367 - 48 = 319
There are 673 students at an assembly. 48 more students arrive late. How many students are there now?
USE PLACE VALUE WAY
ANSWER IN COMPLETE SENTENCE
673 + 48 = 721
There are 721 students now.
There were 604 students at an assembly. 79 students left early. How many students stayed?
USE ANY WAY
604 - 79 = 525
There are 525 students that stayed.