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
32 + 20 = ______
3 × 10 = ______
9 × 10 = ______
6 × 10 = ______
58 + 10 = ______
23 + 10 = ______
45 − 10 = ______
36 − 10 = ______
7 × 10 = ______
89 − 10 = ______
80 + 20 = ______
64 + 10 = ______
67 − 10 = ______
41 + 20 = ______
30 + 10 = ______
50 − 10 = ______
87 + 10 = ______
57 + 10 = ______
59 − 10 = ______
42 − 10 = ______
