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
46 + 20 = ______
22 + 20 = ______
31 − 10 = ______
48 − 10 = ______
37 − 10 = ______
4 × 10 = ______
84 + 20 = ______
40 − 10 = ______
8 × 10 = ______
71 + 10 = ______
3 × 10 = ______
34 + 20 = ______
64 + 20 = ______
36 + 10 = ______
76 + 20 = ______
56 + 20 = ______
57 − 10 = ______
76 − 10 = ______
73 + 20 = ______
34 + 10 = ______
