Addition
What is 234 + 125?
What is 359?
What is 456 − 123?
What is 333?
What is 300 + 200?
What is 500?
Solve 245 + 32 using an open number line.
What is 277?
Round 246 to the nearest 10?
What is 250?
What is 347 + 286?
What is 633?
What is 642 − 218?
What is 424?
What is 450 + 50?
What is 500?
Solve 326 + 241 using partial sums.
What is 567?
Round 673 to the nearest 100?
What is 700?
What is 458 + 367?
What is 825?
What is 703 − 258?
What is 445?
What is 398 + 2?
What is 400?
Solve 768 − 245 using partial differences.
What is 523?
Round 451 to the nearest 10.
What is 450?
What is 276 + 489?
What is 765?
What is 800 − 375?
What is 425?
What is 700 − 99?
What is 601?
Solve 700 − 298 using standard algorithm
What is 402?
A school collected 650 cans. They donated 238 cans. How many cans are left?
What is 412?
Solve 398 + 297. Show or explain a strategy that makes this problem easier.
What is 695?
Solve 803 − 298. You may Partial Difference or Estimate.
What is 505?
What is 500?
Solve 598 + 197 in your head. What friendly numbers could you use? Explian.
What is 795?
Solve 476 + 289 TWO different ways.
What is 765?
The school store has 650 pencils. It sells 238 on Monday and 147 on Tuesday. How many pencils are left?
What is 265?