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
74 + 20 = ______
33 − 10 = ______
4 × 10 = ______
23 − 10 = ______
82 + 20 = ______
89 + 10 = ______
70 + 20 = ______
54 + 20 = ______
60 + 20 = ______
6 × 10 = ______
69 − 10 = ______
38 − 10 = ______
27 + 10 = ______
84 + 20 = ______
3 × 10 = ______
25 + 10 = ______
2 × 10 = ______
31 − 10 = ______
32 − 10 = ______
9 × 10 = ______
