Base Ten Blocks
Using base ten blocks,
321 + 155 = ??
what is 476?
4 hundreds, 7 tens, and 6 ones
Using expanded form,
332 + 123 = ??
What is 455?
300 + 30 + 2
100 + 20 + 3
______________
400 + 50 + 5 = 455
Using a number line,
345 + 243 = ??
What is 588?
Start at 345, add 200 = 545,
then add 40 = 585,
last add 3 = 588
Using algorithm,
521 + 238 = ??
What is 759?
At the zoo, there are 451 lions and 218 hippos. How many in all?
What is 669?
There are 669 animals in all.
Using base ten blocks,
482 + 409 = ??
What is 891?
8 hundreds, 9 tens, 1 one
Using expanded form,
332 + 123 = ??
What is 455?
300 + 30 + 2
100 + 20 + 3
______________
400 + 50 + 5 = 455
Using a number line,
337 + 427 = ??
What is 588?
Start at 427, add 300 = 727,
then add 30 = 757,
last add 7 = 764
Using algorithm,
719 + 259 = ??
What is 978?
I see 119 blue birds and 35 red birds. How many are there in total?
What is 154?
There are 154 birds in total.
Using base ten blocks,
567 + 261 = ??
What is 828?
8 hundreds, 2 tens, and 8 ones
Using expanded form,
394 + 362 = ??
What is 756?
300 + 90 + 4
300 + 60 + 2
______________
700 + 50 + 6 = 756
Using a number line,
650 + 168 = ??
What is 818?
Start at 650, add 100 = 750,
then add 60 = 810,
last add 8 = 818
Using algorithm,
660 + 247 = ??
What is 907?
Ms. Maria bakes 237 cookies on Monday. Then bakes 392 cookies on Tuesday. How many did she bake altogether?
What is 629?
She made 629 cookies altogether.
Using base ten blocks,
839 + 170 = ??
What is 1009?
1 thousand, 9 ones
(regroup 10 tens and 10 hundreds)
Using expanded form,
456 + 297 = ??
What is 754?
400 + 50 + 6
200 + 90 + 7
______________
700 + 50 + 4 = 754
Using a number line,
381 + 577 = ??
What is 958?
Start at 577, add 300 = 877,
then add 80 = 957,
last add 1 = 958
Using algorithm,
563 + 528 = ??
What is 1091?
Ms. Henry collected 228 scarves each day for 3 days. How many did she have in total?
What is 684?
She had 684 scarves.