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
31 − 10 = ______
37 + 20 = ______
73 + 20 = ______
63 + 10 = ______
27 + 20 = ______
4 × 10 = ______
5 × 10 = ______
99 − 10 = ______
7 × 10 = ______
1 × 10 = ______
46 + 20 = ______
43 − 10 = ______
72 + 10 = ______
97 − 10 = ______
17 + 10 = ______
96 − 10 = ______
55 + 10 = ______
2 × 10 = ______
28 − 10 = ______
54 + 10 = ______
