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
28 − 10 = ______
57 − 10 = ______
4 × 10 = ______
54 + 10 = ______
49 + 10 = ______
86 + 10 = ______
31 − 10 = ______
5 × 10 = ______
94 − 10 = ______
53 − 10 = ______
23 + 20 = ______
24 + 20 = ______
69 − 10 = ______
61 − 10 = ______
53 + 10 = ______
69 + 10 = ______
1 × 10 = ______
38 + 10 = ______
12 + 10 = ______
84 + 20 = ______
