Mental Math
546 - 10 = ___
536
Show with blocks. 468 - 111 = ___
357
Use a number line to solve. 779 - 130 = ___
649
434
There are 864 cats and 121 dogs in a shelter. How many more cats than dogs are in the shelter?
734 more dogs.
734 - 100 = ___
634
Show with blocks. 689 - 264 = ___
425
Use a number line to solve. 875 - 432= ___
443
Use partial differences to solve. 575 - 364 = ___
211
There are 586 girls and 803 boys in a school. How many more boys than girls are in the school?
217 more boys.
198 - 100 = ___
98
Show with blocks. 609 - 493 = ___
116
Use a number line to solve. 860 - 118 = ___
742
Use partial differences to solve. 652 - 493 = ___
159
585 pennies
500 - 10 = ___
490
Show with blocks. 555 - 161 = ___
394
Use a number line to solve. 913 - 734 = ___
179
Use partial differences to solve. 502 - 348 = ___
154
Winnie collected 300 toys. Snowball collected 150 fewer toys than Winnie. How many toys did they collect in all?
450 toys.
905 - 110 = ___
795
Show with blocks. 957 - 379 = ___
578
Use a number line to solve. 923 - 899 =
24
Use partial differences to solve. 964 - 799 = ___
165
Ms. Finley's class collected 342 pieces of recycling. Mrs. Song's class collected 110 less pieces. How many pieces did they collect in all?
574 pieces of recycling.