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
54 + 20 = ______
33 + 10 = ______
27 + 20 = ______
13 + 20 = ______
17 + 10 = ______
16 + 10 = ______
5 × 10 = ______
72 − 10 = ______
73 − 10 = ______
68 + 20 = ______
63 + 10 = ______
7 × 10 = ______
27 − 10 = ______
6 × 10 = ______
50 + 10 = ______
9 × 10 = ______
76 − 10 = ______
86 + 10 = ______
52 + 10 = ______
85 − 10 = ______
