Addition
765 + 142 =
907
650 - 210 =
440
700 + 110 =
810
243 + 720 =
200 + 40 + 3
700 + 20
= 900 + 60 + 3
= 963
Harper has 19 marbles. She loses 12 marbles. How many are left over?
7 marbles
489 + 960 =
1, 449
478 - 190 =
288
670 - 234 =
436
347 + 202 =
300 + 30 + 7
200 + 2
= 500 + 30 + 9
= 539
Rosie has 350 crayons. Dayton has 673 crayons. How many crayons do they have all together?
1, 023 crayons.
1, 789 + 6, 900
8, 689
1, 780 - 49
1, 731
500 + 300 + 28 =
828
459 - 209 =
400 + 50 + 9
200 + 00 + 9
= 200 + 50 + 0
= 250
Trey rode his bike for 45 minutes. Braylon rode his bike for 80 minutes. Daniel rode his bike for 38 minutes. How long did all three boys ride their bike in total?
163 minutes
8, 098 + 9, 783 =
17, 881
6003 - 3816 =
2,187
1, 859 - 968 =
891
1, 639 - 423 =
1,000 + 600 + 30 + 9
+ 400 + 20 + 3
= 1, 216
Elly ate 1,891 pieces of cake. Ella ate 1, 340 pieces of cake. How many more pieces of cake did Elly eat?
551 pieces of cake
10, 001 + 6, 748 =
16, 749
4,417
5,002 + 487 + 239 =
5, 728
5,208 - 2012
5,000 + 200 + 00 + 8
2,000 + 000 + 10 + 2
=3, 196
Hudson took 12, 483 steps. Jayden took 5, 860 steps. Sophia took 19, 692 steps. How many steps did they take in total?
38, 035 steps.