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
56 + 10 = ______
8 × 10 = ______
3 × 10 = ______
54 + 20 = ______
81 − 10 = ______
32 − 10 = ______
74 − 10 = ______
1 × 10 = ______
36 + 20 = ______
45 − 10 = ______
73 − 10 = ______
63 + 20 = ______
89 − 10 = ______
78 + 10 = ______
60 + 10 = ______
75 − 10 = ______
9 × 10 = ______
29 + 20 = ______
38 + 20 = ______
88 + 20 = ______
