Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
76 + 20 = ______
15 + 20 = ______
92 − 10 = ______
56 − 10 = ______
63 + 20 = ______
42 + 10 = ______
72 + 10 = ______
96 − 10 = ______
35 + 10 = ______
74 − 10 = ______
68 − 10 = ______
6 × 10 = ______
67 − 10 = ______
7 × 10 = ______
84 − 10 = ______
94 − 10 = ______
98 − 10 = ______
3 × 10 = ______
1 × 10 = ______
46 + 10 = ______
