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
23 + 20 = ______
3 × 10 = ______
71 − 10 = ______
9 × 10 = ______
41 − 10 = ______
29 − 10 = ______
54 − 10 = ______
22 + 20 = ______
54 + 10 = ______
42 + 10 = ______
8 × 10 = ______
15 + 10 = ______
1 × 10 = ______
58 − 10 = ______
6 × 10 = ______
5 × 10 = ______
33 − 10 = ______
80 − 10 = ______
32 + 10 = ______
61 − 10 = ______
