Addition
Use a part whole model to show what 64+23 = ?
Part whole model with large bubble with the answer as 87
Solve 30 -14 =
16
Round 795 to the nearest 100
800
Round 5 to the nearest 10
10
Estimate the answer to the equation by rounding to the nearest 100
2,339 + 1,304 = ?
2,339 turns into 2,300
1,304 turns into 1,300
So, 2,300 + 1,300 = 3,600
Solve 199+287 =
486
Solve 903 - 290
613
Round 1,360 to the nearest 100
1,400
Round 0 to the nearest 10
0
465+371 = 836
836 - 371 = 465
OR
836 - 465 = 371
Solve 3,409 + 1,352 =?
4,761
Solve 3,004 - 2,909
95
Round 3,040 to the nearest 1,000
3,000
Round 99 to the nearest 10
100
Write down 4 equations for the fact family using these numbers: 30, 12,18
30 - 12 = 18
30 - 18 = 12
12+18 = 30
18+12 = 30
1,200 + _________ = 2,100
900
Solve 15,040 - 5,724
9,316
Round 5,093 to the nearest 100
5,090
Round 49 to the nearest 10
50
What math problem can you use to check your work for this math problem? There are two possible answers
200+300 = 500?
500 - 200 = 300 or
500 - 300 = 200
Challenge question:
1,029,324 + 1,781 ,402 = ?
2,810,726
Challenge:
1,000, 000 - 56,910 =
943,090
Round 2,602 to the nearest 1,000
3,000
Round 153 to the nearest 10
150
Fill in the gaps for this fact family:
45 + ____ = 100
____ + 45 = 100
100 - _____ = 45
100 - 45 = _____
45 + 55 = 100
55 + 45 = 100
100 - 55 = 45
100 - 45 = 55