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
5 × 10 = ______
68 + 10 = ______
91 − 10 = ______
72 + 20 = ______
8 × 10 = ______
30 + 20 = ______
40 + 20 = ______
74 + 10 = ______
9 × 10 = ______
40 − 10 = ______
78 + 20 = ______
37 + 20 = ______
24 − 10 = ______
7 × 10 = ______
36 + 20 = ______
36 + 10 = ______
2 × 10 = ______
69 + 10 = ______
54 + 20 = ______
46 − 10 = ______
