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
5 × 10 = ______
77 + 20 = ______
87 − 10 = ______
4 × 10 = ______
58 + 10 = ______
30 − 10 = ______
31 − 10 = ______
3 × 10 = ______
84 + 10 = ______
9 × 10 = ______
29 + 20 = ______
41 − 10 = ______
2 × 10 = ______
58 − 10 = ______
8 × 10 = ______
61 − 10 = ______
77 + 10 = ______
27 + 20 = ______
56 + 10 = ______
59 + 10 = ______
