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
4 × 10 = ______
35 + 20 = ______
33 + 10 = ______
9 × 10 = ______
8 × 10 = ______
87 − 10 = ______
28 + 10 = ______
77 + 20 = ______
29 + 10 = ______
6 × 10 = ______
5 × 10 = ______
78 − 10 = ______
51 − 10 = ______
7 × 10 = ______
21 + 10 = ______
50 + 20 = ______
89 + 10 = ______
66 − 10 = ______
52 − 10 = ______
1 × 10 = ______
