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 − 10 = ______
89 + 10 = ______
27 + 20 = ______
74 + 20 = ______
73 + 20 = ______
90 − 10 = ______
80 + 10 = ______
2 × 10 = ______
8 × 10 = ______
74 + 10 = ______
25 + 10 = ______
1 × 10 = ______
60 + 10 = ______
33 + 20 = ______
9 × 10 = ______
7 × 10 = ______
14 + 20 = ______
29 + 10 = ______
56 − 10 = ______
44 − 10 = ______
