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
9 × 10 = ______
30 + 20 = ______
26 + 10 = ______
7 × 10 = ______
4 × 10 = ______
57 + 10 = ______
34 + 20 = ______
48 + 20 = ______
3 × 10 = ______
72 − 10 = ______
44 + 10 = ______
30 − 10 = ______
67 − 10 = ______
15 + 10 = ______
32 + 20 = ______
96 − 10 = ______
21 + 20 = ______
90 − 10 = ______
60 − 10 = ______
62 − 10 = ______
