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
41 + 20 = ______
72 − 10 = ______
54 − 10 = ______
15 + 10 = ______
91 − 10 = ______
78 + 20 = ______
5 × 10 = ______
49 + 20 = ______
11 + 10 = ______
3 × 10 = ______
6 × 10 = ______
92 − 10 = ______
64 + 20 = ______
43 + 10 = ______
46 + 20 = ______
87 − 10 = ______
4 × 10 = ______
73 − 10 = ______
1 × 10 = ______
54 + 20 = ______
