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
74 + 10 = ______
81 − 10 = ______
5 × 10 = ______
67 + 10 = ______
3 × 10 = ______
4 × 10 = ______
49 + 20 = ______
33 + 10 = ______
55 + 20 = ______
14 + 20 = ______
2 × 10 = ______
33 + 20 = ______
59 + 20 = ______
30 − 10 = ______
23 + 10 = ______
78 + 20 = ______
41 + 10 = ______
96 − 10 = ______
33 − 10 = ______
53 − 10 = ______
