Mental Math
50 + 50 + 10
110
Mental Math
60 - 10 =
50
MENTAL MATH
98 + 499 =
597
How many tens
784
8
99-10=
89
3+3+3
3x3
Mental Math
100 + 900 =
1000
Mental Math
9 - 15
-6
345 + 134 =
479
How many ones in 405
5
100-25=
75
Make the repeated number sentence into a multiplication problem.
5+5+5+5
5x4
5 + 5 + 5 +5
20
562-100
462
MENTAL MATH
155 + 245 = ?
400
2x2
4
350-45=
305
Make the repeated number sentence into a multiplication problem.
7+7+7+7+7+7
7x6
Mental Math
865 + 10
875
649-349
349
MENTAL MATH
10 + ___ = 241
231
3x5
15
500-150+
350
Make the repeated number sentence into a multiplication problem and solve.
2+2+2+2
2x4=8
Mental Math
1048 + 200 =
1248
Mental Math
250-175
75
MENTAL MATH
37 + 63 =
100
MENTAL MATH
6+6+10
24
999-610=
389
Make the repeated number sentence into a multiplication problem and solve.
5+5+5+5+5
5x5=25