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
2 × 10 = ______
44 + 20 = ______
38 + 20 = ______
23 + 20 = ______
12 + 10 = ______
57 − 10 = ______
41 + 20 = ______
76 + 20 = ______
6 × 10 = ______
89 + 10 = ______
73 + 10 = ______
72 + 20 = ______
73 − 10 = ______
87 − 10 = ______
83 − 10 = ______
37 − 10 = ______
31 + 10 = ______
64 + 20 = ______
33 + 10 = ______
7 × 10 = ______
