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
83 + 10 = ______
49 − 10 = ______
75 − 10 = ______
47 − 10 = ______
27 + 20 = ______
36 − 10 = ______
63 − 10 = ______
7 × 10 = ______
26 + 20 = ______
80 + 10 = ______
4 × 10 = ______
2 × 10 = ______
92 − 10 = ______
38 − 10 = ______
34 + 20 = ______
99 − 10 = ______
73 + 10 = ______
78 + 20 = ______
1 × 10 = ______
78 + 10 = ______
