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
4 × 10 = ______
28 + 20 = ______
55 − 10 = ______
1 × 10 = ______
68 + 20 = ______
24 + 20 = ______
88 − 10 = ______
6 × 10 = ______
66 − 10 = ______
75 + 10 = ______
12 + 20 = ______
50 + 20 = ______
38 − 10 = ______
5 × 10 = ______
48 − 10 = ______
8 × 10 = ______
86 + 10 = ______
58 + 10 = ______
63 + 20 = ______
43 + 10 = ______
