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
26 + 20 = ______
8 × 10 = ______
22 + 20 = ______
32 + 20 = ______
31 + 10 = ______
70 − 10 = ______
3 × 10 = ______
7 × 10 = ______
31 + 20 = ______
40 − 10 = ______
34 − 10 = ______
61 + 10 = ______
9 × 10 = ______
13 + 20 = ______
16 + 10 = ______
33 + 10 = ______
4 × 10 = ______
5 × 10 = ______
74 + 10 = ______
71 − 10 = ______
