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
78 + 10 = ______
48 + 20 = ______
3 × 10 = ______
52 + 20 = ______
1 × 10 = ______
7 × 10 = ______
44 + 10 = ______
6 × 10 = ______
9 × 10 = ______
48 − 10 = ______
34 − 10 = ______
71 + 10 = ______
33 − 10 = ______
23 − 10 = ______
8 × 10 = ______
26 + 10 = ______
38 + 20 = ______
46 − 10 = ______
63 + 20 = ______
29 + 10 = ______
