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
33 + 10 = ______
36 − 10 = ______
31 − 10 = ______
7 × 10 = ______
1 × 10 = ______
87 + 10 = ______
80 + 20 = ______
3 × 10 = ______
54 − 10 = ______
38 − 10 = ______
93 − 10 = ______
49 − 10 = ______
78 + 20 = ______
36 + 10 = ______
9 × 10 = ______
74 + 20 = ______
41 − 10 = ______
84 + 10 = ______
57 + 20 = ______
62 + 20 = ______
