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
34 − 10 = ______
26 + 20 = ______
59 + 20 = ______
25 − 10 = ______
9 × 10 = ______
31 − 10 = ______
76 − 10 = ______
64 + 10 = ______
16 + 10 = ______
1 × 10 = ______
73 − 10 = ______
42 + 20 = ______
29 + 10 = ______
8 × 10 = ______
74 + 20 = ______
67 + 10 = ______
72 + 10 = ______
17 + 10 = ______
77 − 10 = ______
91 − 10 = ______
