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
27 + 10 = ______
8 × 10 = ______
94 − 10 = ______
55 + 20 = ______
48 + 20 = ______
83 − 10 = ______
5 × 10 = ______
3 × 10 = ______
40 − 10 = ______
4 × 10 = ______
9 × 10 = ______
30 + 20 = ______
48 + 10 = ______
14 + 20 = ______
68 + 10 = ______
34 − 10 = ______
2 × 10 = ______
76 + 20 = ______
6 × 10 = ______
78 + 20 = ______
