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 − 10 = ______
9 × 10 = ______
4 × 10 = ______
52 − 10 = ______
7 × 10 = ______
54 + 10 = ______
22 + 10 = ______
14 + 20 = ______
75 + 10 = ______
31 + 10 = ______
24 + 20 = ______
51 + 20 = ______
68 + 10 = ______
34 − 10 = ______
25 + 10 = ______
72 + 20 = ______
6 × 10 = ______
48 + 20 = ______
3 × 10 = ______
91 − 10 = ______
