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
69 + 10 = ______
76 + 10 = ______
30 − 10 = ______
73 + 10 = ______
8 × 10 = ______
6 × 10 = ______
78 + 20 = ______
37 + 20 = ______
4 × 10 = ______
54 − 10 = ______
55 − 10 = ______
7 × 10 = ______
5 × 10 = ______
61 + 10 = ______
31 + 10 = ______
23 + 10 = ______
73 − 10 = ______
19 + 10 = ______
24 − 10 = ______
72 + 20 = ______
