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
1 × 10 = ______
5 × 10 = ______
35 − 10 = ______
23 − 10 = ______
28 + 20 = ______
28 − 10 = ______
16 + 10 = ______
9 × 10 = ______
28 + 10 = ______
6 × 10 = ______
55 + 20 = ______
50 + 20 = ______
54 + 10 = ______
43 + 10 = ______
17 + 20 = ______
21 − 10 = ______
87 + 10 = ______
2 × 10 = ______
53 − 10 = ______
61 − 10 = ______
