Which Strategy?
432-384 =
Adding Up to Find the Difference
Solve: 305 - 297 =
8
This is the number of tens in the number 3,948.
What is 4?
If Gillian has 349 books in her office and she gives 125 to Kelvina. This is the number of books she has left.
What is 224 books?
967 - 178 =
Removal
Solve: 834 - 199 =
635
This is the value of the 8 in the number 6,895
If there were 231 students who went to playlab in September, and that was 46 more than went in October, this is the number of students who went in October.
What is 185 students?
Name both strategies you can use to solve: 267 + 43 =
Keep One Number Whole or Break Apart
Solve: 528 - 163 =
365
This is 10 less than the amount of pennies in $2.00
What is 190?
There are 98 Kindergarteners, 96 first graders, 99 second graders and 90 third graders. How many total students are in First Program?
383 students
Name both strategies you can use to solve: 125 + 399 =
Give and Take or Hundreds and Adjust
Solve: 1,943 - 876 =
1,067
This is standard form of the number that has 2 hundreds and 11 tens.
What is 310?
A tree in front of Little Dalton had 1,425 leaves. After a strong breeze, it only had 307 leaves left. How many leaves did the breeze blow off the tree?
1,118 leaves