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
3 × 10 = ______
7 × 10 = ______
55 + 20 = ______
87 − 10 = ______
32 + 10 = ______
56 + 10 = ______
84 + 20 = ______
77 + 20 = ______
4 × 10 = ______
43 + 20 = ______
93 − 10 = ______
88 + 20 = ______
57 + 10 = ______
5 × 10 = ______
59 + 10 = ______
67 − 10 = ______
2 × 10 = ______
57 − 10 = ______
15 + 20 = ______
48 + 10 = ______
