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
73 + 20 = ______
89 + 10 = ______
23 + 20 = ______
74 − 10 = ______
35 + 10 = ______
8 × 10 = ______
59 + 10 = ______
93 − 10 = ______
57 + 20 = ______
92 − 10 = ______
3 × 10 = ______
22 + 10 = ______
70 + 20 = ______
25 − 10 = ______
6 × 10 = ______
15 + 10 = ______
5 × 10 = ______
68 − 10 = ______
2 × 10 = ______
27 + 10 = ______
